I came here after finding two 50% off coupons (one yellow, one white) for an oil change in a UCSB student coupon book.
The first thing they asked was, ""Do you have the white paper (coupon) that goes with the yellow one? This coupon isn't valid by itself."" That's funny, because neither of the COUPONS in the COUPON BOOK say they're not coupons.
They decided to honor the coupon when they realized I was not about to shell out more money than I expected just to avoid the hassle of finding a more straight-forward business.
However, they also told me I need about $300 worth of more routine maintenance--most of which I've taken care of recently, so it's not an issue. They still pushed for me to spend more money, including dismissing the oil recommended by my car's manufacturer as being inadequate. Come on--It's oil. Yeah, the more expensive stuff is better, but your car will run fine without the spa treatment.
Bottom line: The staff's pleasantness is worth remarking on, but unless you're comfortable with asserting yourself to nice mechanics when they tell you the sky may fall without X, Y and Z, I would go elsewhere.