A fair amount of people commute daily from Tianjin to Beijing, so I think it is a fair comparison. The commute (train) takes about 1 hour (per direction, so 2

A fair amount of people commute daily from Tianjin to Beijing, so I think it is a fair comparison. The commute (train) takes about 1 hour (per direction, so 2 hours per day), and is good for people with offices/homes near the terminating station, but not so good for people that need an additional 1-2 subway rides to their office. One hour commute times are pretty typical for largish modern Chinese cities.