Full disclosure, they haven't done anything on my XM1027 build, that's been all me - but they have kept my Toyota pickup running until >450K miles, several of my friend's and family's cars and trucks running. They do everything from old cars to late model vehicles - OEM maintenance, to full custom race setups and other customization. They are really good with being thrown curves - you can ask Ken about the work he's done on my Toyota truck over the years, I have giving him some down right insane requests and he's come through.
They are not the cheapest shop around, but they are honest and will actually talk you through what your real options are on a project. They are cheaper than many shops in this area though, and do better work - I've heard of customers from a far down as Gilroy, as far north as Napa, and as far east as Tracy coming to their shop.
[EDIT:] I am not a paid, compensated, requested endorser, simply a happy customer [/EDIT]