I just finished doing it for a couple of months to sit reserve for 9E. The flights can be pretty full but they are also frequent. I never had to leave the night before to make it by 10:00 but I have had to sit up front and and/or taker the second flight.

The last flight out of DTW is usually about half full and will often have empty rows in first.

Commuting worked ok but i'm glad to be back home. I was also glad to have a crashpad there with a shuttle and breakfast/lunch.