PolyTrack — a game that challenges your reflexes and skills, have you tried it yet?

Hello all,
Let me introduce myself — I am the new player for PolyTrack — a reflex-testing game with quick tracks, acute turns, and nimble hands. It's such a fun game that I feel like I'm concentrating hard every time I "pass" a level. Here's my question:

What in your opinion is the strongest feature of PolyTrack? Is it the playing style, the illustrations, or the difficulty?

Can you please share your tricks for getting past the tough levels?
I'm in search of a community to share the experiences with — so if you had the chance to try it, please do not hesitate to tell me!