Haven't tried my rebounder yet. Just thought it strange that my rebounder was ordered on the 19th, delivered on the 21st (per FedEx), and I received an email from Needak on the 23rd, two days after delivery, informing me that my rebounder had been shipped and giving me a FedEx tracking number. Since I don't go in and out of my front door, and FedEx doesn't ring the door bell, it could have sat out there for several days. Fortunately, it wasn't stolen. Just wish Needak had given me a little more notice so I could have brought it in sooner.