The cabinet looks great and is pretty roomy.   Our glasses have a thinner base, so fit in the hanging slots nicely. 
The only reason for 4 stars instead of 5 is, the backboards fit well, but are almost a bit too large.  If you center the bottom board on the back of the cabinet, you need to attach the screws on an angle to ensure you don’t split the particleboard. (I did this on the bottom thankfully) Next, when installing the top back board, there isn’t much room to attach where it butts up to the bottom back board.     I simply over lapped a bit and screwed to make it as flat as possible, as to not notice from the front, but this wasn’t ideal by any means.