My friend ended up installing this in our bathroom without properly connecting the top piece to the wall behind the toilet and it was very dangerous.  It was tipping and really not good.  Once it was connected to the wall it still had a tendency to lean forward.  I would think about figuring out a different way to attach it to the wall, maybe through the backboard, instead of from the very back of the piece.  It brightened up the bathroom, but we ended up moving it to less trafficked bathroom and found something else for our master.