My five year old son and I put t hi is together in a few hours.  Directions could be better but overall easy to assemble and has been enjoyed by our five kids and friends for over a month now.  My favorite feature is how easy it is to unclip the net and lay it down.  Our backyard gets really windy with storm in MN and out last trampoline had arms/the net break more then once.  This one you can easily lower the net to prevent wind damage.