I've always liked Adcom - I had an old GFA-545 I sold to trade up to a used Parasound. I always regretted it, and later sold the Parasound for a GFA-535II. Then bought a second GFA-535II - I use those with another amp (Rotel, NAD, and AudioSource) in rotation in my home theater.
I really dig the 535's, they are much stronger than the 60 watts suggest - my NAD claims 100 watts, the Rotel and AudioSource 80, but the Adcoms deliver loud sounds with authority everybit as much as those without strain - I'm amazed the distortion lights still work.
I'm not a fan of the so called "warm" sound (which sounds completely unlike real, live music to me) which is probably why I like the Adcoms so much. On the used market they're a steal.