This is a good quality product. Assembly, once mastered, is easy. The problem comes in that you have to figure out the center piece assembly with less than clear directions. My buddy and I spent 30 minutes thinking through what had to be versus what the directions appeared to say. 
Once we got past that assembly was completed. I like the two shelves I got. No complaints. They are both filled with CD's and do not require mounting to the wall as they lean slightly into the wall. Pulling them down would take some effort. It won't happen accidentally.