I love Tassi. Not only is it next door to BART (great for when you drop off your car), but they are really very friendly and not at all salesy. The prices are really great. And they don't talk down to women or try to make you feel dumb. I've never walked (or driven) away from there feeling ripped off. I've been going to them for a few years now. I have a 1960 beetle, and they keep it running. A couple of times I drove off and they didn't really fix everything they said they would, but I drove it right back, they apologized and then fixed it on the house. So they are a little bit scattered, extremely busy, but always very honest and super nice.
I highly recommend Tassi!
Pros: Affordable, Unpretentious, Convenient
Cons: Swamped, A Bit Chaotic