For 8 years I delivered and service Hotspring Spas, Tiger River Spas, Hot Spot Spas and in the last year I did service on Apollo Spas, Arctic Spas and Coyote Spas. Now just to let you know that my opinions will lead towards one spa manufacturer. I say that because of what I came across with in the last year. It gave me time to compare and evaluate in my opinion what spa was better than one or the other. So you will get the pros and the cons of each spa and you can be the judge of it.
I'll get down to the spa models in familiar with,
Tiger River Spas
Artic Spas and Apollo Spas