We've eaten at the Rainforest Cafe in DTD and the one at AK. We've received great service at both. We enjoy the food and the kids really enjoy the atmosphere. We stick to the basics - burgers, wraps, chicken nuggets (for the kids) and its been fine.
We have ADRs for the one at AK on our upcoming trip, and we'll probably eat at the one in DTD on our day we go shopping there. My kids love looking at all the animals and like when it "rains"!!!
Have a great trip!!!