To me, the best part of a tub is….. the JET POWER!!! – In my spa, ALL of the jets can be adjusted, AND each seat is a customizable massage. 72 jets total in my monster of a hot tub! The filter and the OZO system turn the water over often while we use it and throughout the day. I didn’t get a copy of the owners manual when I bought it which was annoying. I hate printing things off from my computer, but thats the only complaint about Barefoot Spa. Everything else has been outstanding.