The Rainforest Cafe is a chain in the fashion of Hard Rock Cafes and Planet Hollywoods with a new twist: It's made to look as though you are dining inside a rainforest. As with HRC's and PH's, you are in it as much for the experience and the atmosphere as for the eating. Being a member of the "Rainforest Club" ($10 to join, or free if they're feeling generous), I don't have to be subjected to what looks like a pretty long waiting list. If you go here often, you might consider joining, you get coupons and whatnot and you get on a walk-up preferred seating list. However, if you do have to wait, you can be entertained by the live performance of a man and his talking parrots outside, mill around the gift shop (which has some cool stuff... you also get a discount on the merchandise with your card!), or kickback at the Magic Mushroom bar sitting on a giraffe or zebra-legged barstool!
The restaurant itself is a little dark (it's a rainforest!) and decorated accordingly complete with realistic-looking wildlife (that come to "life" at random), plants, rainforest sounds, and what no rainforest should be without: many large, well-lit fish tanks containing exotic fish. The tables are covered in animal prints, also. Every ten minutes is a "thunderstorm" with sounds and lightening flashes.
The food: The restaurant has a pretty extensive menu with specialty drinks, appetizers, desserts, and entrees. I've had their quesadillas (different than typical mexican quesadillas and very good), and their grilled chicken sandwich which was also good. One time I also had an Oreo drink of some sort which I would not recommend: it's like $5 and not very big or very good.
At Katy Mills, it's a great way to escape the loud mall and kickback. The waiters are all very nice and the service is good. Overall, it's just a fun experience!