We decided on the Jettsetter because of the added therapy jets and the water conditioning with salt. It seemed like a lot of money at the time. We had a spa before this one. The difference between this one and our old one is like day and night. This is actually a therapy spa where most are hot tubs with jets. The difference is remarkable. The rolling water jets for your back is a game changer, the bottom jets work your calf muscles and thighs. The other stations work your shoulders and middle and lower back. The spa is well worth the extra money.