My experience as well. When we tried to schedule a driving test so our daughter could get her D.L. EVERY testing station in the entire DFW Metroplex was booked solid. This was in July 2 years ago IIRC. Nothing available even as far down as Waco. So Wichita Falls was the best solution. It was a good day trip for me, the wife, and daughter.
No waiting in lines. Daughter was filling out paperwork when they called her name for the driving test. The driving test took about 10 minutes. They wound up driving around the residential neighborhood that surrounds the DPS office.
On the way back we stopped into Catfish O'Harlies in Decatur and had a great lunch. Great food. Highly recommended!