We loved the rainforest room on the Dream, but on a 5 night cruise only used it one day.
We are sailing on the Treasure in June and the rainforest room cost is prohibitive to buy a length of cruise pass if we’d only use it 1-2 days.
I think it matters if you’re traveling with kids and how much time you plan on using the rainforest room. We very much like to spend time with our kids on vacation, and they still like to hang out with us, lol. For us, not worth it. If just my husband and I, we would absolutely buy it.