I've got an H/K 525. I like most things about it, like the fact it works, and the left channel doesn't go out all the time. Video switching is nice, although it doesn't have upconversion. I like the reassignable inputs. Bass management is fairly easy to understand, and it's got a lot of crossover settings.
Of course, I was also moving up from a late 70s Toshiba SA-775.
I hate, hate, hate, hate, hate the remote. See my old complaints on it, although I can't find my longest rant on the subject for some reason.