I started around 2 weeks ago now. The route is around 12 miles each way for me and it is getting easier. I had taken quite a few spin classes before i started also at my gym. This is much more enjoyable then class is though. I even find myself riding to the bagel shop on the weekends to get a morning breakfast and to just get out and ride. I also deal with a headwind usually on the way home and there is more hills to climb on the way home. One good one when I start and another close to home.