Convenient enough, very clean and stress-free way to travel to the airport. Finally. Appreciate the cost reduction to $9.00, which is a very reasonable fare to the airport. Things I hate - train shuts down at 1am - why? Also, inevitably people get lost trying to find the UP express platform in Union Stn. You literally have to walk a mile through twists and turns to get there. Lastly, the tap on tap off (with Presto) is NOT clearly marked so many people aren't aware about the requirement to tap at the platform before boarding and tapping off when you get off the train.