a true moment of relaxation with the spa, our choice for this one ?? dimensions perfectly suited for installation in our veranda and the square shape to keep in place relative to a round, so even if it is a bit noisy (sound of a vacuum cleaner) when you move the bubbles (too bad that we can not adjust the intensity of the bubbles) it does not bother the neighborhood, one can sy install 2 adults 2 children or 3 adults, 4 c is feasible but just a little bit. (after all depends templates people! ! lol) .. by cons if one is very large, this model is to avoid ... too small or large for one person. we are pleased with this purchase, we enjoy every day, even our 3 year old is happy ... c is trying to adopt.