I went in a few months ago to have them replace a fuse because my headlights were out. The mechanic at the front desk stated that there was a problem with the wiring and he'd have to have it looked at so they could find which wire needed replaced. He quoted me an hourly rate and didn't know how long it would take to find. I went with my gut and took it to a gas station garage instead, they replaced my fuse and my lights have worked ever since.
These guys are scammers. Don't trust them with anything but an oil change.