He loves his wall tracks gift. He even sent me a video message to say thank you! What I purchased was age appropriate and will keep him entertained, so we're both very happy.
Very easy to assemble, all one needs to do is follow the instructions. I would not suggest just looking at the box or you will not only have assembled it incorrectly, it would not perform as it should.
I decided to buy in pieces due to the other pricey wall tracks and being that I have a five year old singleton; he would only need a few pieces at a time to keep him happy and entertained.