I bought this Lego Harry Potter toy for my fiance. HE LOVES it! When you look at Legos train sets, the Hogwart's Express is one of the top trains. It looks super cool and it has even GREATER potential with a few add-ons. Lego Harry Potter The great thing about any lego set is you can continue to add on to it and create new things, you are only limited by your imagination. Lego Harry Potter runs super smoothly and has tremedous power.