30 year guarantee on the liner? That surprises me.
What are the terms of the warranty?
I have two neighbors with Kayak. The ones behind me didn't open their pool this year at all that I can tell.
My other neighbor got it 8 years old from a co-worker and moved to his house where it's been for at least 12 years now, not sure if its the original liner. They have moved and I don't know the new owners. So for a 20 year old pool it still looks pretty good from the outside, haven't seen it up close in a few years.
Personally I don't think any AG pool is worth that kind of money. You can get a great pool for 1/3 the price and even if you have to replace the liner your still less than 1/2 the price... IDK, personal decision I suppose. They do have a good rep around here tho.