Overall not bad! The mattress inflates fast with the built in electric air pump. (I havent deflated it yet.) I left it up a couple days to make sure there was no leaks for first time using. I didnt feel like I had to add more Air to it. (The instructions say it may be necessary after 1st couple uses, if you are going to keep matter inflated and use the next eveningday. Air actually held up well. I laid on it a couple hours. Not that comfortable if you have a bad back. Feels like you are laying on a waterbed. I dont think it would be bad for someone young or that does not have serious back issues. I purchased twin size. Its a little on the small size. I Definetly like the height of it.