Love everything about this table with one exception. The drawer is a little sloppy when opening or closing, just a little bit more side support or guides would make it perfect!
Now as for the two metal brackets on the back, they are NOT  for hooks to hang things on, they are so you can secure the table to a wall and avoid the possibility of it tipping over. 
The instructions explain how to do this and they even supply the needed hardware. 
It just takes a few minutes to read over the instructions and be safe.