Very nice self contained spa.  Great for just a couple, can't really see 4 adults in it unless they are really small.
Very easy to set up and run, a bit louder than I thought it would be but not bad at all.  I likie the all in one construction and it feels very sturdy.  The waterfall is a great touch for such an inexpensive spa.  I would buy it again.

Pros: Self contained
Cons: Louder than I thought it would be