We had an above ground hot tub at our other house. Bought it at a hot tub Expo at the Convention Center.
When that thing got dirty, we just drained it and refilled it. It's like a big bathtub.
I didn't like the formed lounge type seating. I prefer the more traditional circular bench type hot tub that is attached to our current swimming pool. I would suggest climbing into the empty display models and checking for your comfort.