I’ve had my MC2152 for about 4 months now and absolutely love it. I considered the 2301s initially (and still would like to get a pair for my other setup...) but went with the 2152. This is by far the best McIntosh tube amp I have personally owned. The physical size is big... but not bigger really than the 2301s so if you have the room for those you’ll be fine with this. Btw I have my 2152 paired with a C2600 so can’t speak for how it sounds with anything else. Here are some pictures I posted back when I took delivery:
http://www.audioaficionado.org/showt...170#post951170
Good luck with your decision. You can’t go wrong with either.