I'm not sure what the go with this is. I hopped in, closed the door, listened to some music and floated. In my opinion, the only difference between the tank and floating freely in a backyard swimming pool is that the tank costs money to do so. It was, however, beneficial to find out that I am not claustrophobic and can withstand being enclosed in a small, dark space. This is something I had to try once, but only once.