Re-resurrecting this thread:
I've been taking things to Khulman for the last few years and am really happy. At this point I've had just about everything possible done to trousers (waist, seat, thighs, tapering, etc.) and jacket sleeves shortened at the shoulders.
I've also tried a number of other recommended tailors in the Seattle area, but I've been the happiest with Khulman - I'm not planning to switch anytime soon.