I have 3 of these and the build quality is consist between the three. I bought three because they look like paired up next to each other, but if I move and need to split them up, I have that ability. For the price they are a nice storage option. I knocked off one star since the backing is slightly too big.  You really need to take your time to make sure its sitting flush, which is really hard to do when you're hammering away otherwise it will hangover the top (or worse over the bottom).  If they had given less then half an inch of wiggle room, you would still have enough room to mount it properly without the headache.  My best advice after building tons of particle board furniture is to remember you are BUILDING something.  Take your time, make sure you're driving all your screws straight and tight and make sure everything is sitting as level as possible.  Half the people that give two star ratings and complain about loose furniture did a terrible job of putting it together.