I like the overall treatment to this site design. It feels a bit like Microsoft esthetic (but better executed) which is just fine and looks great here.
Fitts’s Law: Why the Easy Button Wins
Large, close targets are faster to hit than small, distant ones, that’s Fitts’s Law. A look at the 1954 rule behind buttons, prime and magic pixels, thumb zones, and dark patterns.



You can tell how great they are by all the ribbons from other sites they tacked onto the side.
Those drive me crazy too man.