Hopefully OP won't mind me posting a response to this here, since she made it clear this is "her" thread of dining experiences.
I had a negative experience at Flying Fish due to an bad service and food. I had to send back my food because the scallops were inedible (way too salty). The 2nd set of scallops I got was just as salty, but I didn't bother to complain again. I just didn't eat my meal. Our server had a bad attitude and provided poor service. We have never returned, simply because there are too many other restaurants to eat at either to try or re-experience having a quality experience. To be fair that was almost 4 years ago.
@MarkinNM I laughed at your T= terrible joke, even though I don't agree. I thought you were being funny.
OP, as for T-Rex, while I don't consider it to be the best food at WDW, my family has eaten there several times and always have an enjoyable experience because of the atmosphere. The food has always been fine... I would put it on par with Chillis. The last time there was a service mishap with a dish not being made and my dh sitting for a long time w/o food. We didn't complain. Mngt came to our table more than once to apologize and even offered free dessert, which we declined as we had plans for sundaes at Ghiradelli. They handled it well so it didn't make us upset. I always like to get the T-Rex Quesadilla. What did you guys end up getting? I don't think we are going to take the kids there this next trip, simply because there are so many new Disney Springs restaurants to try.