I played and finished the Batgirl DLC in about an hour and a half. Wasn't too bad. It was a bit linear, e.g. go straight from one objective to the next. Batgirl is pretty bad arse though. She does feel a bit slower than Batman in terms of movement. The hacking tool is kinda fun when using it in predator/stealth sections and great for plotting ambushes, but using it for puzzles was boring. The fighting segments were very challenging. I enjoyed the final boss fight with Harley Quinn and Joker. The predator/stealth segments however seemed way too easy for me. It was a pretty good DLC overall but I hope the future DLC installments are more detailed and robust than this.