A:AnswerWires run through small opening and are not very visible. We are very satisfied with our stand. If you have anything on shelves it will also conceal wires.
A:AnswerI also had trouble getting the rear support bar on my purchase to line up. When I was able to get the bar in sync with the support, the holes would not line up to put the grommet through,
A:Answer58"L
Widest area before angle: 20"W
Shortest area after angle: 12"W
There is enough room to fit a flat screen and a center speaker.
Hope that helps