I bike-train-bike to work and I cycle back from office. My commute is 5 miles. This allows me to ride with work clothes and park my bike under my office table.
It was difficult in the beginning. The smaller wheel ride is not as comfy as 700c/32mm. I ride a Brompton 2 speed and there were many times I wished I had more gears. And there was also a learning curve on how to board trains during peak hours with a bike :-)

But overall, love it. :-)