For my Sundance, the ozanator is an optional extra!! (that will teach me for going for one of the cheaper models!!)

I liked the sensation when we tried the Sunbelt spa and I mistakenly thought the Chelsee had it! :-/
Anyways, I would like to purchase one of these - how hard are they to fit? :-?
Finally - can you give your opinion on ozanators? Do you think it is money well spent?

Cheers in advance 8-)
Nosh.