I'm with most people in saying that this is a good game, but not a great game. It probably could use some better design. It actually does work well with what it has. I was a bit confused as to how to play it at first. I thought you had to change the white tabs to make the trains stop and go. You instead had to...well, you know.
It was kind of funny seeing the dots die. Sometimes, it was easy and they just came on at the same time. It really was pretty original. I do look for games with more going on, but it's nice to have an easier game at first. The music was pretty good too.