Son is thrilled

Our 4 year old son is great Chuggifan. The locomotives are big and colorful. So far, keep the colors with us very well. The coupling is a bit hard, but he does not get it back, his 2 year old brother unfortunately.
Which is a shame especially when the Super locomotive that on the first day already one wing broke. So he no longer remains alone open, but folds right back down when you release it. The other stops but flawlessly until now and our son cares not really. I would recommend the locos and interactive playset.