I really like this track.
But I'm torn with the rating... The track is great - good layout, looks good, nice feel... but the non-existent rock faces and walls leading to black holes has to be fixed - but then if you don't make a mistake it doesn't matter....
But still, a great little track considering it was only made to test 3D trees. I'd put it somewhere between Castle Hill and Gen Track when the walls are made solid.