If you didn't go into the sales meeting knowing what you wanted to buy and that the price you got was the best for your needs, you probably overpaid by 50-100%.
You have a limited time to rescind, but will be stuck with the costs forever if you proceed. It might be a good deal for you, but until you do the research to find out, best to assume its not. They will take your money another day if you decide you want to proceed later, and there are thousands of other choices you can make via the resale market that might do you better.
Yes you can easily exchange for Cruises via II, but it is almost universally a bad deal compared to other platforms.
Hyatt is a relatively expensive system to own in, and very complicated.
All the best, have a read on the Hyatt forums to see if that gives you more insight if you want.
Discussion of the legacy Hyatt Residence Club system
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