A couple of years ago Rainforest was bought by the restaraunt group that owns Joe's Crabshack/Capt' D's/ and several other chains.
IMNSHO it is horible now. They threw in a bunch of seafood (nothing like "rainforest calimari") on the menu, made the drinks smaller, and generaly cheapened the experience.
If you must, just go into the bar, no wait and you can see all there is to see in the place while you have a drink.
Other things to watch out for:
Any restaraunt in DTD (Gherideli soda fountain is the exception)