They deserve zero stars. The slimy salesperson boasted of how well we would be treated if we purchased the extended warranty, producing copies of his own service invoices (no doubt fakes) that showed all the extra work he had performed on his vehicle every time it came in.
The real experience is being told that we'll be charged a $150 diagnostic fee every time something goes wrong, and only if the eventual problem is covered under warranty will that be waived. Transmission failed in ~4 years + 90,000km. Our warranty is supposed to give us a rental vehicle; at the time of servicing, all reputable car rental places were out of cars so rather than put us in a car off the lot, they found the sort of rental outfit that people with no credit cards use. Car was old, poorly-cleaned, and showed obvious wear and tear inside and out.
Other issues include driver side window that barely works in cold weather,
a passenger seat heater that cuts in and out, and the latest issue was an unplugged cord under the driver seat that caused the passenger side airbag to fail. Yep, $150 for the cord to be plugged back in. These folks are the reason people a) mistrust mechanics, b) hate car dealerships.
Staff is condescending towards women and arrogant in general, going so far as to refer to themselves as the "529 Wellington" of service departments and local (honest) garages as "McDonald's."
Don't walk, run in any direction away from this dumpster fire of a business.