Freight damage. Had to straighten pieces before assembly. Some holes needed drilling. Labeling of pieces missing and some are mislabeled. No detailed dimensions of pieces. When assembled the plastic pieces are very very noisy in a windy area.  The neighbors noticed it. Probably have to replace the cheap thin clear pieces with thicker plexiglass. Just noticing during a rain it will probably leak all over; which is normaly not a problem unless working inside.