I like it. The system is very natural and smooth. When it said "new mail" at the beginning, I tried to close it for fun, expecting it to be impossible because it was a tutorial, but when it happened I really liked the realism and freedom of it.
The game's aesthetic, it has humour too. I like it. I wish it had a desktop wallpaper though, I guess. But I can see it being hard to play with a wallpaper. And I guess it would make it less aesthetic.
Edit: also as comment below said, SFX was so satisfying.