I needed this for some friends coming into town for the weekend. They ended up staying longer due to a flight delay. It retained air and they said it was really comfortable. After they left I actually tried it and I really liked it.
This bed is strong enough for the 450 pounds we are putting on it - more if you count our dog. So far so good. I like not having to get out of bed to add air and the pump is really powerful. Good purchase.
We bought this bed a while ago for an event that was canceled. It's been siting in the closet waiting to be needed. I tested it before having anyone else sleep on it to make sure it wouldn't deflate or pop a hole in the middle of the first night. It inflated in a couple of minutes to a nice pressure level. I slept on it that night and it was fine. I topped up the air before our guests used it, but I didn't need to do anything else with it for the week they were with us. We are very happy with this purchase.
This mattress feels like a real bed and is very comfortable. I can sleep through the night and not wake up at all. Easy to set up and take down. Very happy.