I bought this tank for my sister, a new diver and a fairly small woman. The small tank fits the trunk length of her body and is lighter weight than the full sized tanks. The smaller size made it easier to handle out of the water and the shorter length makes it more comfortable to dive with. The smaller capacity was not a problem on shallow, warm water dives. She still could dive for an hour without getting below 500 psi. The tank itself perfomed well and up to our expectations.