We took a nighttime private party bike on the Deep Ellum bar crawl a few days after Christmas. When we showed up, everything was ready to go! Melissa did a great job instructing us on the policies and what the night was going to consist of, and it did not disappoint! We went to 4-5 different bars, and ultimately ended up choosing to spend the rest of our time riding around the city. Honestly an awesome experience. They let you play your own music and bring your own drinks (no glass or hard alcohol), which was super convenient.
If you've never been before, you definitely have to! Day or night, rain or shine, it's one of the best activities to do in Dallas.