The attention to detail is brilliant. Its not just about building a train network, although that in itself is great fun, it is more like sim city. I built a fantastic city with housing, schools and tower blocks in a few hours.
Definately worth buying in my opinion.
Further annoyances are the limitations on the number of stations you can have and the fact that the european version uses the yen as currency in the game which leaves you having to play with a currency converter beside you to make sense of the figures. Other train based games such as railroad tycoon and city development sims make A-Train 6 look a very weak title to be avoided.
I work full time so only really play at weekends. This game stole my entire Saturday and Sunday! Once you get started and you watch the little cities springing up you can't just go off and do something else - you want to see if the department store or the school or the shopping centres actually spring up where you want them to. I don't really have a big PS2 games collection (just the usual GTA, Getaway, Sims popular games) but this is a worthy addition I think. Highly recommended.
Maybe I'm being unfair on this game, as Japanese gamers seem very taken by it. My response to this is that Japanese gamers are more likely to have played A-Train 1-5 and would not mind the awful game manual so much. My advise is spend your money elsewhere.