I have used 2.3s for several years now. My current listening room is 16x21 with two large openings.
I have used the Bryston 4B-ST and the Plinius SA-102. From the Plinius I went to the Rogue Zeus and haven't looked back. The Zeus now has KT-90 output tubes and was rated at slightly over 276 watts when last tested up at Rogue.
Tubes or SS, as long as you have quality power and are happy with upstream components and other gear, you'll enjoy yourself.