Great game, in its own respects!
It's really sad that a game this good receives so little reviews.
It reminded me of the good old days when I played with toy trains rather on computers. Man, that was forever ago. Although a few bugs here and there (like being able to reach bonuses and drop-off/pick-up points by driving on the rail next to them), a well designed game! The Minimap was hard to find at first, but it may have given a little too much away about the level. There's less trial and error when you know the route you have to take, although I'm grateful it didn't show where the enemies were, so there was still some element of surprise.
Fantastic idea in general- driving a supply train and all. Although everything was well designed and executed, I am reluctant to say I found it tedious after the first stage alone. Once the magic had worn away a bit, the game became exceptionally slow, and a mistake when selecting a track could lead to a minute's worth of travel to correct it. The different speeds were a very good idea, but in general I have to admit it was far too slow. That's not any fault of yours, just the way the game was made.
Overall, no real problems except I found it to be almost stagnant. It takes an exceptional amount of time to play, and even two levels will keep you occupied for half an hour. Perhaps not action-packed, but well made nevertheless.
~VelvetDarkRocks~