We've had our Sweetwater Cayman for 2 months now. I know that is not long, but so far we love it!
The delivery guys we used do pretty much all of the hot tub deliveries in our area--regardless of brand. They also pick up the hot tubs that need servicing--so I thought they have some good insight. They spoke highly of the Sundance and Sweetwater tubs--said they RARELY come back for these. THey could not say the same for some other brands (yes, they named names and they were all top makes).