Icon Audio, any opinions?

You don't see much of them, but I've heard a few of their integrated valve amps over the years and they seemed really enjoyable. I'm throwing together a 3rd system in a spare room and might want to go for an integrated. Any users?

I am looking at their 300B and 845 models, though I'd consider others as well. I have a spare set old Evolution Acoustics Micro One speakers that I would start out with, although I would eventually try other models just for fun. The room is smaller so I don't need a ton of power.