What a fantastic track for high-pp cars!
The author has made clever use of elevation changes, with many fast sweeping corners featuring a little crest on the entry, or just at the apex, challenging the driver. When you get the line right and feel the car jump sideways but stay on the black stuff, it's a great feeling. The final corner, a accelerating, cresting spiral, is particularly memorable - get your line wrong and it's easy to make an unplanned pit entry, get it right and you end the lap with a blast.
If I was being picky, the chicane seems slightly pointless as you can go through flat out fairly easily. It's also unfortunate that the AI isn't really up to the challenge here, but that's not the track author's fault. Overall though it's fast, fun and challenging, would be great for online races in 700PP cars.
In the end it feels like a great natural mountain track, but scaled up for LM cars rather than hachirokus, which is very cool, challenging, and lots of fun.