I looked at the same two spas. Actually, I looked at what seems like hundreds of spas at a recent homeshow, and we decided on the Altamar. We liked some of the features of the Jacuzzi; like the LBI lights (Low beverage indicatators) but it really came down to fit, and the Sundance fit my wife and I perfectly. We've had the spa for two weeks now, and we absolutely love it. Bought the Altamar with the mahoghany finish. It looks stunning, and it is extremely comfortable. Service from our local Sundance dealer couldn't be any better. The whole process was smooth. We purchased the floor model from the homeshow, and wet tested the same model a few days later just to make sure it was the right fit. The dealership was extremely accomodating and would have refunded our purchase price if we had decided that we didn't want it. Jacuzzi purchased Sundance, and they are similar in many ways. We paid $7995 for ours with the Coverlift III, chemicals, Microfilter, Silveroxide "Spa Frog" and Ozonator. They threw in a spa pillow, which is helpful for my 5 year old, and some really nice Sundance robes. This was AFTER the sale. We didn't get it with a stereo because it wasn't important to us. We preffer silence and conversation while soaking. To each his own. I can't say enough good things about both the experience and the tub itself. We've been soaking happily and hope to for many years. Go with either one and you'll be happy. If you're on the fence between both spas, pick the better of the two dealers for your deciding factor. Hope this helps!