I want to recommend Flat 4 Freak in Berthoud, CO. Did a smoke test, fixed leaks, replaced PS lines, and replaced my rear brakes. Price wasn't bad, turn-around time was good and they weren't booked out for a month (like some of the more popular subie shops in CO) .
Paul (owner) took me to the back and showed me where all my problem areas were. When they did my brakes, they bedded them in properly ( even subie dealers neglect to do this sometimes)
They do everything all the way to full rebuilds and have started posting some time-lapse engine build videos online
I've had a lot of mechanics in the Fort Collins/Greeley/Loveland area work on my car (duh...Subaru) and Flat 4 Freak has been the best overall experience so far