Good point on the filters. They retail for around 60, but there are dealers on Ebay selling them for 30 each. I like the extra set and swap them out each month as the other air soaks and rinses.
The cover lifter is a must in my opinion and watching the dealer install it himself made me realize I would have had a hard time doing it myself.
As far as complaints, although ti may seem petty, I would like to see jacuzzi folow a couple other manufacturer's design as far as the edges being flat so that you can rest a cup or drink on the edges. As far as I have seen, all the jacuzzi models have edges that don't permit anything to rest on and I use the top of the waterfall to rest my drink. Small details I know, but I don't want to buy the attachment that they sell.