Hi Kimberly!
Coral Reef just happens to be one of my favorite Disney restaurants! Our family has been there at least our last 3 Disney visits, and each time we've come away very pleased. We always ask to get a seat closer to the aquarium, so perhaps that contributes to the satisfaction (each time, they were able to accommodate us).
The ambiance is low lit and pretty soothing. Every time, our waiter has been quick, well informed of the menu, and pleasant to talk to.
The menu has some pretty tasty selections, such as the lobster soup, the Mahi Mahi, or the New York Strip. They also do a good job on the creme brulee.
But it may not be for everyone. For us, we love it and recommend it to folks who visit.
So give it a shot!
And enjoy your visit!