hello,
some months ago we made a family "escape" to a luxurious resort outside of Toronto.
The hotel had a huge Hydropool 800 Self Cleaning which impressed us all.
I am not an expert on hot tubs, but since then I am also looking to buy one for my back yard (so, this escape in the resort is going to be more costly than I had imagined...) :-).
I think I ll go with Hydropool due to the Self Cleaning system they have.
Good luck with your purchase
regards
Stuart