A.S.
I just may not be his thing. When we had only one or two sets, it seemed that we were always one piece short to connect the track. We got a few more sets, and it's worked out great!
We actually found that this set is easier than most other train sets. The wooden sets seem to come apart easily, and the other plastic ones seem harder to put together (the kids here may just be too young for those). They usually are able to set it up, sometimes with a little help, and we put the pieces in tupperware containers when they are done. The kids here love it, even the girls.