I wet tested all the other major brands after doing research. The Master was best, hands down. It had better flow and it has a bunch of jets. I don't need to use chlorine at all. My pool is used 5 months a year. The Swim Spa will be used 12 months a year. I've lost 20 pounds in 3 months and my wife has lost 15. This is the most fun exercising we have ever had. I feel 20 years younger...I highly recommend the Master Spa swim spa. I'm an engineer and very picky (my wife says) and this is the best investment we've made.
Pros: Big, Powerful, Easy to care for, Easy to Swim In...
Cons: Only 3 colors to choose from...
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