We have purchased the AirTrack since we wanted to have a durable and reliable mat for a long and intensive useage. And in deed this is exact what we have recieved. Also there is almost no chemical smell. Inflating and deflating is fast and easy and can be done by my 10 year old daughter. Shipping was almost fast. It was stucking for about 10 days in a finish post-station. After triggering a delivery date at DHL it was immediately send forward. At the end also fine.