I agree. I think they provide a nice contrast.

It's works, but could use a tweak. Put some light colored accessories on the bottom shelf, like a tray and a stack of books to tone down how much black is there.

Where did you buy entertainment center? I love it!

We bought the Entertainment center at Pottery Barn!

Pretty room, but I think you need a square table.

I really think it is fine... But I also think that a square coffe table would fit better in this room because of the empity space.

A round table would actually fit better not a square. It would repeat the curves of the chairs on the side, as well as the rounded style of the sofa/chairs. The rug could be pulled down from the wall unit so that the sofas front legs sit on the rug.

Looks good