I bought one from trainworld. I figured at that price I couldnt turn it down. I am in the process of laying track so have only run it on some of the track that I have down. It runs good and the detail is also good. I'm not sure what curvers the passenger cars are for but I think anything less than 22 inch radius is going to be a problem but I figured at that price it can go on a wall display shelf. Not much help I know, maybe someone else will chime in,,,, good luck,,,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,, st