I agree with what has been said already too. Only one little section is a puzzle to be solved. The whole rest of the route is forced. It's a too big and messy board for just one interesting section. Maybe resizing it could be a thing?
I like those PP1 type levels a lot, but that one is by far too long to keep the fun until the end. At the top of it, if like me you land 2 off, the idea to restart all over hurts... LOL
Insights