Shell / HTOA - Hawaiian Holiday

Has anyone gone to a Shell Vacation Club presentation and received one
of the "free" hawaiian holiday vacations from Holiday Travel of
America? My wife and I sat through the presentation yesterday and were
given a certificate to mail in for a 3 day 2 night trip which includes
flight and an "economy" hotel. We have to leave on a Tuesday and pay
the taxes on the flight and hotel (which we were told would be around
100 bucks). Just wondered if anyone has gone on this trip and what to
expect. Any trouble booking your dates? How "economy" is the hotel?

Thanks in advance!