I have owned a hot tub for the last 40 years - one in MI, two in GA, and now one here in The Villages. My current hot tub is the Tuff Spa TT250.
TuffSpa TT250
Simply put, I would never consider getting a different brand. Their patented cover is guaranteed for life. On my previous hot tubs, I had to replace the cover about every 5 years, and they were always a pain to remove, especially for one person. The cover on the Tuff Spas can be opened on either side by one person with one hand. It then becomes a shelf to put towels or drinks on. In addition, Tuff Spa only uses readily available common parts throughout it's construction, so if something fails in 5 or 6 years you can find the replacement part cheaply on line.
No matter which hot tub you go with, either get one that already has an SWCG (Salt Water Chlorine Generator) in it, or add an SWCG to it. There have been several studies recently that link continued bromine exposure to hyperthyroidism. I switched my hot tub to chlorine and installed Saltron Mini for between $200-$300. Not only is it safer for your skin and body, but my hot tub now stays far cleaner than it ever did for much longer.