I have ATC SCM40’s in an arrangement not totally different from what you have, including a large reflective coffee table in front of my sofa. The key aspect of the ATC’s is that they are very essy to place in rooms to get optimal imaging. They do play loud very well but that midrange driver gives plenty of life at low volumes. I like listening to them at modest listening levels as well. The reflective surface doesn’t affect the sound much, the spatial information in my system is as good as I have heard anywhere.
The ATC’s are very modestly priced now, I recommend them highly.