Welcome to the board New88,
I thought someone else would chime in here for you, but here goes. I have just purchased a new J470 and will be taking delivery very soon. To me, the 470 is a great conversation tub, with four awesome corner seats, nice waterfall and lighting effects, great foot jets, etc. I'm anxious to get it....obviously
Unfortunately, it's too early to comment on its' reliability but I do have high hopes for it. My searches included all the brands available to me locally, Sundance, Jacuzzi, Beachcomber, Bullfrog, Arctic, Artesian & Master Spas. For me it came down to the dealer support, the Jacuzzi dealer I felt, was just a little stronger and completely customer focused. I know five people in this area with Jacuzzi spas and they're all very happy.
Hopefully a 470 owner will chime in, I know there's a few of them here.....good luck in your search. Not sure about the pricing, I think it's maybe just a tad high... I'm in Canada so our pricing is a little different.