Size is better
We got the smaller one this go around since you have to wash out the basin after every use. So realistically, you don't need that big of a water tank. Pretty easy to use but the tank is not easy to clean out at all. The spout although is easy to rotate around the room, it has to point at a specific direction. It does not have the option to go straight up.
ProsEasy to use
ConsWater basin is very difficult to clean out.