Eigenvector,
It is a nightmare trying to decide from all the tubs out there. I know, as I bought one last March.....so ,here’s what I did.
There is a website called hotubuniversity, a Chris weaver. I read all of his stuff and learned a lot. He’s somewhat biased as he likes master spas and deals with them, but still gives good info.
Here’s what I learned. You want balboa controls and waterway jets. These parts are the high end of hot tubs and are available through many parts sellers. Some hot tubs only use their special made parts and cheaper controls which you can only get from them, like jacuzzi ,Arctic might be the same way. He explains why he likes full foam and dislikes perimeter insulation....I didn’t agree with him on that for maintenance reasons, but I don’t live in Canada...my tub is outside however....
He talks about shells....gives me a headache.....he talks about glued and clamped hoses, which is a good thing, mine are not , but I’m gonna clamp my own hoses myself this year ( zip ties).....
And he emphasizes that a great dealer with great service ,usually one that has been in business, for a long time can trump a lesser quality tub......
I want to repeat, even reading his stuff still gives a headache but at least it lets you make an informed decision.
I purchased a vita spa which is actually a Maxx Spa, made by Maxx...weaver says they are a middle of the road spa. I disagree but ,once again, it’s tough to make a call. My spa has waterway jets, balboa controls, glued but not clamped hoses, it is a thick shell with no supports underneath. It does have a metal perimeter structure with a sealed bottom and perimeter insulation which he doesn’t like but I do as access to my tub is extremely easy and is insulated enough for me that I have to leave the cover open a little during the summer as my water temp really goes up.....my dealer has been in the hot tub business for decades, so that’s good..
As I said, he gives good info and it does help to make a decision......check him out...
Hope all this helps....
I gotta add, man, I do like my spa, I use it even this winter....
Oh , mine was in the $7500, and like 84”x84”.....