Great experience overall. Shuttle was (luckily) waiting for us as we walked out of the IAD terminal. Free upgrade upon check in. There were two folks working the front desk and no line, so the process was easy. Communication on return process was unclear though, and created confusion for us on our way back. Staff said they open at 7, Google (and their website) say 7:30. Everywhere also says their shuttle runs during operating hours. So the night before our morning flight I had a small panic about how we were going to get to the airport from the rental lot. Turns out they were open before 7 and everything was great. Drop off was smooth and there was a person there for check in and the shuttle was operating. No surprise charges or any issues with damages. When are you actually open? Overall a good experience, but communication and signage could be improved.