This motorized train set is a cute addition to my sons' toys. I can see how having a collection of a few characters in the set would keep them interested and allow them to play together. The diesel set we received has a smaller attachment in the back that was easy enough for my children to attach themselves, and the fact that it could move forward on its own kept their interest for a longer period of time than most other little trains. Seems to be good quality, and it is not loud. Overall, a good toy that's suitable for a number of age groups.

My son loves his motorized Percy. He absolutely won't let it go, so much so he cries to take it to bed with him (we need to take the batteries out for bed). These are a little larger than our other Thomas trains but not hugely so. It is pretty quiet when the motor is on so we will occasionally forget it is on if he brings it into another room. Overall a very fun toy to play with on our tracks or on the floor, it does not attach to our older magnetized train cars, but it is fun in its own right.