Done. That was an amazing experience, but what now....
Played Lone Echo yet? The only game I feel rivals Alyx in polish, story and characterisation. It's a more limited, shorter game though, and the actual gameplay puzzles are simple and can be repetitive. The Zero G locomotion and the hand and arm simulation has not yet been beaten. It's uncanny how it can work out your arm positions from your head and hand positions and orientation alone - it's ahead of Alyx in that respect, which is remarkable considering the game is a couple of years old.