We went this past Friday. We did not have ADRs and only waited 20 minutes at 6:30p on a Friday night. Not bad! We had a party of 7, including 3 kids under the age of 3 - all of them loved it. I didn't think the meteor shower was bad at all, and the atmosphere of the restaurant is so much fun.
I also thought the food was really yummy. I had a shrimp and pasta in tomato cream sauce and it was really good. My husband had chicken fried steak and it was also yummy. My kids shared a pizza and ate some of my pasta, too. The other 2 adults with us had tortellini and a steak, and they enjoyed those though they thought they were nothing special. And we splurged for the big smoking dessert and shared it between the 7 of us with some to spare, even - and it was WONDERFUL.
HOnestly, Trex was my favorite meal from our whole trip. Very yummy and so much fun!