O.k. I set up my Stage yesterday and can only compare in memory with my Theater i (which was installed for only a week in my NEW home theater), so comparisons are difficult. I CAN say it is much better than the Cinema i, sounding bigger and fuller, but not as full and smooth as the Theater i. It integrates beautifully with my Vantage fronts (better than I expected).
The concave panel is not as directional as the one from the Cinema and the tweeter is less obvious. Actually, I thought it integrated quite well.