Getting ready to buy 1st hot tub. Need advise on what you think is the best to choose from. I have tested the Caldera Niagra, & HS Vista. Interested in the Sundance Maxxus, although it is a bit pricey. Liked the Caldera. It seemed to have the most powerful jets, or maybe it was because of the diverter system. To much information. I have catalogs & brochures. Even watched a video from ThermoSpas. ThermoSpas talked a good game, but I don't know if they can be wet tested. Any suggestions or recomendations?