It's hard to say without listening. I can say the very best room I was ever in was a small room but was very, very dead acoustically. Overall, I would lean to highly damped rooms than live ones.
Windows in a listening room
My 12.5' x 15' listening room has an 8'-wide patio door on the long side. I was concerned that the large glass area might be hurting sound quality, and even got an estimate on a sound-absorbing curtain—about $600. Then I watch this video1, and now I don't worry about it any more.
http://www.acousticsinsider.com/window-behind-speakers-causing-problems/?utm_source=Acoustics+Inside...
Thought others might find it interesting.
http://www.acousticsinsider.com/window-behind-speakers-causing-problems/?utm_source=Acoustics+Inside...
Thought others might find it interesting.