To expensive for what it delivers
If this game is above $15 bucks, its not worth it.
The interface plain and simple belongs into a late 90's game. Creating a train route is fun, but try to run 2 or more trains along side and you run into a dump of a game. A city's max track is 4 and then you run into serious congestion problems. If your own tracks ain't the issue, then your competitor's will build up and around you and anything else. Making the map look more of a huge rollecoaster theme park.
The worst of it all will have to be the scenario objectives, no story, no unlocks.. simply here are the objectives, accomplish them and go to the next map. Figure the supply and demand map and you'll be finishing scenarios in 30 mins or so.
I wish Rail Road Tycoon 3 was available for mac os x. RRT3 is worth a 8.5 while Sid, a 1.9 That's about all I can share on the game.