Did an elite on the Celebration first week in December. Used their transfer from hotel to ship and back to hotel after cruise. Hind sight being 2020, I should have used their transfer to/from the Airport/Hotel.
For gifts, we got a toiletry tote, a large tote, 2 stainless 'martini' tumblers (yeti spoof), a HUGE fruit/cheese basket, cookies, lanyards, magnet. If you feed the slots enough, you will also get some dinner comps. There was also a welcome aboard cocktail party.
There were 'drawings' at 11:00 each night for various games (matilda cash cow, etc.). They would call several names but you only had 90 seconds to 'get' there. The last night of the cruise, the drawings were at 5:00.
There was also a mid-week promo where if you had a certain amount of points on the 'given' day, you got $200 Free Play.
I would do an Elite again.