OK, here's my honest opinion. Our family went and found it to be terrible. We won't go back, making it the only restaurant in WDW for which I can say that.
However, and it's a BIG "however", we read the same types of terrible reviews about Ohana before making our dinner plans there on the same trip and it ended up being one of our very favorite meals and we'll go back there whenever we can. Contrary to the reviews we read, we found the food and service to be flawless.
We also read reviews about CRT being rushed, with poor quality food and iffy service, but found the service to be impeccable and the food to be completely fine (if not world class).
And so on, and so on, with nearly every restaurant in WDW. All have supporters and detractors.
You should feel confident that everybody's experience will differ. You might love WCC; lots of people do, as it's almost always full. You might find it to be an "OK" experience that you don't regret. Or you might not care for it at all. But use my experience, and the experiences of all of us, merely as reference points and don't let us talk you out of something that looks good to you. The odds are good that you'll like it or love it!
Have fun!!!