We've used a similar corner shelving unit to create space in a small 7 by 9 ft room. It's a great, easy shelving solution for small spaces (although installing it was a bit tricky as the walls weren't plumb.
Possible tv placement. Would like cabinet doors and open book shelf on top. Corners tend to be dead spaces, so I'm a big fan of corner cabinets, curios, plant stands, anything that uses this interesting little nook.