It's definitely bigger than you think. Do your measurements. Other than the bottom slots on each side the slots aren't very deep.  For example, you can only fit a manila envelope in the bottom right slot despite the appearance of the others being just as deep. The rest on the right are probably the width and depth of an envelope. The left slots aren't very long, deep, or wide. Those don't get much use. The chalkboard works as expected. Overall I'd say it was 3.5 stars for usefulness and 4 stars for looks.