Purchased as a gift for my grandchildren.  They love jumping on it!  Really wish it had come with the necessary stakes.  It never moved while we were here, but Myrtle Beach had some strong winds that resulted in it being thrown over our fence into the neighbor's backyard.  It suffered some damage to a couple of the poles.  We have since purchased the stakes, but seems it would be a good policy for the manufacturer to include even if the price is increased by the $20 to buy them!