Another happy belated b'day Ed!
How does this compare with Lego? Size wise or maybe the nano means it's even smaller than Duplo?
Some wonderfull videos on Youtube re Lego train layouts. I seem to realise my grandson at 3 and a half is more attracted to Duplo/Lego rather than the O scale trainset we have. On the other hand they grow out of kiddies stuff so quickly (he has already annexed his mother's Ipad

). And he loves to remote control the train. I may compromise by spraying the Lima trains in Disney world colours for now only to respray to more formal covering when he starts to recognise the grown-up world. Ok I need to start building a station for his Duplo passengers which measures up well with the O scale coaches.