This Thomas & friends Super Station was very easy to build, the instructions gave you 3 or 4 different options on how to set the tracks.
My kids decided they wanted to build it the way it was pictured in the box but it's easy enough to change it around if you want to. There will be some extra pieces depending on which track set you choose to build.
Building it was a lot of fun with my two little helpers and they've enjoyed playing with it for hours after it was done. It comes with 3 trains and a helicopter but it also works with hot wheels cars and 1:55 scale Disney Cars from Mattel.
It does take a big space once built so make sure you clear some room for it before assembling it.
Highly recommended, my two boys (7 & 5) have spent tons of hours playing, racing with it since we built it. [This review was collected as part of a promotion.]