PSBGlass

Hey everyone, So I've been doing a good deal of research on a new spa purchase. I know I want a larger tub, that is preferably deeper(I'm a larger fella, tall and heavy, but not huge). A big plus for me in a tub is easy maintenance, with lower to no odor, and minimal skin irritation. I'd like something my girlfriend and myself can stretch out in, but also that will accommodate several people for when we have parties. I intend to build a Sauna in close-ish vicinity to the tub, not that this is all that relevant, but I'm assuming you guys and gals have more experience with this, so who knows, perhaps it's a point to be made. Anyhow, build quality and energy consumption are huge selling points for me, as I'd like a tub that is low maintenance, durable in southern Michigan winters, won't cost me a ton to maintain in both price and time, and will cause me less hassle in the long run. I know that a good relationship with a dealer is extremely important, so that aside, assuming they all give equal service, what are your thought on Models, and brands I should be looking at, methods for getting the best price, and filtration and sanitization methods and add-ons for these models, to make maintenance as easy and cost effective as possible. Also, are there any brands that simply just blow the competition out of the water in terms of any of these specifics? Thanks for your input, and try not to make this a soap box for disdain.