Bad compared to proper train sims, but still enjoyable as a novelty.
The game is a train driving simulation that uses live-recorded video instead of conventional 3d models. This means that the picture at any point of the track will always be the same (say good bye to replayability!) and everything on the screen (passengers, oncoming trains, vehicles) stops as soon as you stop the train. In other words, in motion it looks much less natural than on the screenshots.
There are only three routes, all of which are hour-long and the video quality is quite bad and blurry (modern HD train videos from Youtube look better in comparison).
You can enable time (dawn, night, ...) and weather (snow, rain, ...) effects which will be simply overlayed on the same video, but the end result will be nothing but laughable. The game has a built-in guide with short voiced descriptions of POIs around stations.
This is by no means a replacement to a proper train driving game such as Densha de Go! However, it was still enjoyable on its own due to its novelty and interesting railway line selection.
I would recommend the game to train lovers or just people interested in unconventional games who want a novelty game to play for a few hours and never come back to.