Just over 30 miles round trip, 2-3 days a week for me. The wife will drive it the days I'm not. She is about 40 round trip. Free charge station walking distance from the house too! If I only drive it a few miles I top off at home. If it needs more than that Ive been charging for free and getting a little exercise.
Right now I'm at 115mpg. It will get better too. Last Saturday had a half day at work, then 100 miles roundtrip on expressway. No time to recharge inbetween so the expressway was all on gas bringing my lifetime mpg down a lot.
2012 Chevy Express Cargo
2013 Chevy Volt