Worth it is so hard to answer...i mean, it's almost impossible because the responses are so personalized. Its like asking whats the best color or whats the best song...
I'll say this, their prices even with the discounts are high. At the end they will try to sell you products (which is a HUGE turnoff for me). The last thing I want to deal with at the end of a massage or something is a sales pitch. Ive had better massages and Ive had worse (I cant speak for the other treatments).
If its just being pampered that you're looking for and have the money to burn, sure, go for it. But, in all my experiences and from everything I have heard "best massage ever" was never a thought or a sound I heard but it surely is priced like it should be.
That being said, Im one of the few who don't think the day pass to the rainforest room is worth it either.