I like the two pump system, but I am not to thrilled with the price.
Know anything about the marquis "Everyday Hot Tub" line? From this line I was also shown the 636. It had two pumps and the layout was nice. The warranty was not as great.
Five years on shell, exterior, base, plumbing. Three years on Major components.
While the warranty is not as good as the quest or destiny, the salesman told me there was no difference in the components used between these two lines. Seems unlikey given the difference in price. I was offered the 636 for 5,995. If I wanted the All-Weather upgrade, the price was 6,495.