I put my train together quickly and yes, I'm having trouble with the last car falling off. It seems they don't connect very well. I also need to do a better job connecting the track pieces together, but I figure I'll wait till Halloween as it was not that easy to do. I think it may need some tweaking to get the cars to stay together, something I will have to work on. But I do think it's very cute and larger than I thought. I did not get the train station last year, so I may make the center a huge graveyard.