Backpains,
I sell both spas and either is a great choice. The biggest difference between the two is how they sit. If you are a taller person, the Kauai will probably be the better choice. If you are under 5'9" the Jetsetter will work just fine for you. As far as price, we sell the Kauai for 5600 and the Jetsetter for 6000 so you are getting a great deal. Make sure to get the one that fits you right.
ArcherC