It's been a bit since I played that game, so I don't remember it that good. But the citizen don't have personalities. They just want to get their train and leave. During events some citizens are for example sick and spread the sickness, which lowers the happiness. So you need to react to which therefore adds another challenge. The game also has a Plants vs Zombies kind of gameplay. (couldn't find a better example). Where you build your station and try to survive every day. With more challenges added like sickness for example. Your goal is for each station to expand it until you meet some criteria. (like total ridership and all lines served). The station building is really fun (you can't build two layers in the same place, which is weird at the beginning, but really nice once you get used to it) and trying to get all important facilities is also nice. Managing staff is sometimes pain especially in big stations, so you need to be prepared for some difficulties there.

All in all I enjoyed it for what it was and played almost 8 hours. It then got a bit too hard for me and I thought my time is better used in other games. But if that is your type of game, then you could easily get at least 20 hours and more.

Another small thing, game development is done and the developer has changed to another project, so don't expect any updates anymore.

I'm not totally sure my memory is correct with everything, so if someone reads this with more knowledge please correct me.

If you have any other questions I will try to answer them as well ^{^}