I've really enjoyed the Rainforest Room on the Wonder. I know there is always a debate about the Rainforest Room on the classic vs. dream class ships, and if the cost is worth it etc, but as a strictly enjoyment standpoint I like it. I find the fact that it does't have windows or a hot tub a plus. I enjoy the heated stone chairs, but I spend most of my time in the low heat steam room. I'll jump over to the high heat/ high steam room for a bit, rinse off in one of the showers which are themed to a weather event with lights and pressure (and sometimes scent if it's working), lay around on the stone chairs for a bit to cool off if one is available, and then back to the low heat steam room. Repeat, repeat, repeat.