Upon arrival the top labeled B had tape stuck to it and left sticky tape marks on it and it’s been hard to clean it and remove it. It also smells like paint for 5 days now. 
The directions to put together is very good and it was easy to put together. Although, the 2 back top panels labeled Y did not fit correctly and did not have screw holes in the bottom as the directions show, which means the 2 top back panels labeled Y hang loosely.