Just to follow up on comments from earlier posters - I have now stayed at the DFW GH twice.
1. Pool is great if you are an adult and enjoy airplanes or are two years old and your favorites words are "Busses", "Choo-choo" and "Zoom"!
2. Small but pleasant gym.
3. Friendly, proactive staff.
4. Convenient for flyers (more so than the HR).
5. Sort of pricey.