John Koo
John Koo at Mazda Roseville

John Koo

Sales Associate

Mazda Roseville

800 Automall Dr
Roseville, CA 95661

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4.8
24 Reviews
4.8

24 Reviews

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24 Reviews of John Koo

October 13, 2025

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Employee Rating

Thank you, Mazda Roseville, for providing such remarkable and consistent customer service. I want to extend a special note of gratitude to Ronny Mogannam for making my experience stress-free, enjoyable, and More

by pazdapoc9
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes
Oct 13, 2025

Mazda Roseville responded

Thank you for your kind words! We’re thrilled to hear that you had a stress-free and enjoyable experience with us. Ronny will be especially delighted to hear your shoutout! We truly appreciate you choosing us and hope to see you again soon.

October 12, 2025

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I was the easiest car buying experience I've had. Everyone was great. Loved Johnny! More

by diannacorkill
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Max Cuadras

Oct 13, 2025

Mazda Roseville responded

Dianna, Thank you for sharing your experience! We’re so glad to hear that buying your car was easy and enjoyable. Johnny will be thrilled to hear your kind words! We appreciate you choosing us and hope to see you again in the future.

October 09, 2025

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John was most helpful with all of our questions. We were never pushed to buy a vehicle, but we wanted to work with John after spending time looking over the vehicle options with him More

by miller10304
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Scott Holden

Oct 10, 2025

Mazda Roseville responded

Thank you for sharing your experience! We're so glad to hear that John was helpful and made you feel comfortable throughout the process. e truly appreciate your trust and are happy you chose to work with John. Enjoy your new vehicle and we wish you many happy miles ahead!

October 04, 2025

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We had the pleasure of working with Jai Edwards. We absolutely love our Jeep and. can’t thank him enough for his patience with us and giving us a great deal! Super friendly staff & service! More

by Steph Henry
Sales Price Transparency
Trade-in Experience
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Recommend Dealer
Yes

Other Employees Tagged: Max Cuadras , Jai Edwards

Oct 06, 2025

Mazda Roseville responded

Steph, Thank you so much for sharing your experience! We’re thrilled to hear that Jai and our team made your Jeep purchase such a positive one. We truly appreciate your kind words about Jai’s patience and the friendly service you received. Enjoy every adventure in your new Jeep!

September 28, 2025

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Returning and loyal customers so trusted Mazda Roseville’s reputation and service. Mr Koo and everyone especially our finance manager were friendly, knowledgeable, and efficient during leasing pro More

by AKICHANI
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes
Sep 29, 2025

Mazda Roseville responded

Thank you for your loyalty and trust in Mazda Roseville! We’re so glad Mr. Koo and the rest of the team made your leasing process smooth and efficient while also taking care of your other vehicle in service. We truly value your continued business and look forward to serving you again in the future!

September 27, 2025

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Great overall experience. Thank you… to Johnny Koo, John Ryan,and Scott Holden for making my buying experience easy. More

by pjmacrorie
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Scott Holden , John Ryan

Sep 29, 2025

Mazda Roseville responded

Thank you for sharing your experience! We’re so glad Johnny, John, and Scott made the process easy and enjoyable for you. We truly appreciate your kind words and look forward to welcoming you back in the future.

September 16, 2025

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Welcoming, professional sales members whether online or in person. Courteous communication. Large inventory in easy to access environment. More

by crawfordrn
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Herbert Perdomo , Steven Harris

Sep 17, 2025

Mazda Roseville responded

Thank you so much for your kind feedback! We’re thrilled to hear that you had a positive experience with our team both online and in person. Providing courteous communication and a welcoming environment is always our goal. We truly appreciate your support and hope to serve you again in the future!

July 31, 2025

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Johnny Koo did a great job, took plenty of time and tracked down exactly what I wanted. The vehicle had to be transported from another dealership but was ready for the next day. Paperwork was no hassle More

by Carole C
Sales Price Transparency
Trade-in Experience
Purchase Time
Recommend Dealer
Yes
Aug 01, 2025

Mazda Roseville responded

Carole, for and make the entire process smooth and hassle-free. It's great to hear everything came together quickly and that your questions were fully answered. We appreciate your business and hope you’re loving your new vehicle! We wish you many happy miles ahead.

July 01, 2025

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We had a fantastic experience purchasing a vehicle from Mazda Roseville. John Koo made the process incredibly simple and quick. We negotiated the deal over the phone, and once we reached an agreement, I we More

by wisdom_sp2000
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Lorraine Wilson

Jul 01, 2025

Mazda Roseville responded

Thank you for sharing your fantastic experience! We're so glad to hear that John Koo made the car-buying process smooth, quick, and hassle-free. We know your time is valuable, and it's great to know we could make everything straightforward and efficient for you. Your recommendation means a lot to us, and we truly appreciate your support. Enjoy your new vehicle, and we hope to see you again in the future!

May 17, 2025

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Employee Rating

Hands down Roseville Mazda is the place to go. I recently bought a new CX5 and was delighted the entire way! The sales staff was very attentive. I really appreciate how hard John Koo and Roger Thu More

by Pat
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Scott Holden, Roger Thurman

May 19, 2025

Mazda Roseville responded

Pat, Thank you so much for your kind words! We’re absolutely thrilled to hear that your experience at Roseville Mazda was such a positive one. We’re incredibly proud of our team, and it’s wonderful to hear that John Koo, Roger Thurman, and Scott Holden all played a part in making the process smooth, transparent, and enjoyable. Thank you again for choosing Roseville Mazda and for recommending us so highly. We wish you many happy and safe miles in your new CX-5!

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