Although I followed the directions to a - T... I inadvertently had one of the safety enclosure supports turned in the wrong direction..  Although I totally made the mistake, correcting was time consuming.    That being said...  If not for that mistake, this is a simple trampoline to assemble.   One person (handy and motivated) can assemble this by themselves in about two hours.  I had no extra parts after assembly, nor was I missing anything.  Im not one to write reviews on anything, whether I like of hate the product...   But I decided to review this trampoline.   If youre in the market, especially for a space saver.   You cannot go wrong with the Skywalker 14 rectangle trampoline!   More than satisfied.    Oh, Id like to add....   My first Wayfair purchase as well!