I just started playing and can’t get enough…love the fact that I don’t have to wait for an energy bar of some kind to refill in order to keep playing. Also, what I think sets this game apart from other fb games is the way you can easily add friends. Most games require you to first get someone to respond to your friend request AND THEN get them to also accept an invitation to play. With TrainStation, you simply send friend requests to those already playing and when they accept (they almost always do for obvious reasons) they automatically show up as game friends.
This is a great feature, because, if you play multiple fb games, it can get extremely confusing trying to remember which friend request goes to which game.