So far, great purchase! I had been looking at this for a long time so when it went on sale I had to buy it. It’s only went down in air once since I’ve had it which was probably the initial stretch of the material. It’s a little lower to the ground than what I would like, but it’s still comfortable. My coffee table is about 17” tall for reference in the photo. There are three valves on it for inflation so just make sure you have all of them closed properly. All of them work just fine. I recommend that you put like a blanket or a cover of some sort over it just because the material isn’t the best for being comfortable. It didn’t take long at all to inflate it either. Make sure you have your own pump though! Really happy with it so far.