Few problems:
The installation instruction should be reviewed because there is much better way to install the cabinet. . 
1/Like blots with plastic suction cups could be install earlier, even before Step 1.  
2/ the E -Self Support wood could be made a much solid size wood. 
3/ The way to handle the package at delivery it should be written on the package. Inside is glass and it could be damage easily if there isn't a proper handle  of the package by delivery people. One of my C-back glass came cracked ( 24-30 inch long -at least ) . 
4/ the plastic feet  are light gray . The should be black . Much better . 
5/ The installation screws holes in the top should be covered better way -may be wood or plastic-not with paper ( too small). 
Other way the cabinet looks ok.