Let me start off saying my son has been a big Thomas and friends fans since he was 1 1/2 he is now 5 and still loves it just as much.At Christmas my son got his first trackmaster and since has been in love with them.The track is simple to put together and the trucks snap on and off with ease.I like how when you add a new piece to your engine it comes with a piece of track with each piece you purchase.And the best is trackmaster pieces are not exsensive at all!The only thing I don't like is when they decide to make a "rare" train and of course you child wants that one and you can't find it!