I was in the Dallas area earlier this year and haven't had a chance to post a review until now. I skated at 2 rinks: Euless Center and McKenney.
Euless Center had two rinks, and the main rink was inside a large hockey stadium. It was a huge arena with real seats. I skated at 6am and was the only one there until around 6:45am. It was a beautiful venue and pretty spectacular with the stadium seating. The rink was on the warmer side and the ice was hard.
McKenney also had two surfaces and the freestyles were separated by skating level. I self selected into the higher level rink and had the ice to myself for at least half an hour. Then some advanced skaters showed up. The rink wasn't too hot or cold and ice was hard.
Dallas sure is lucky with Dr. Pepper sponsoring the Dallas Stars. There were about 8-9 rinks in the area and I only visited 2 of them in my time there.