OK except for the non-working hint button
The game as such and the storyline are find.
What's less than fine is a hint button that just doesn't help.
I was stuck once and needed a hint: I was directed to a street that was blocked.
I searched for help on the internet and found a walk-through which didn't help either.
I started from scratch 4 times, and it was pure chance that I eventually found out what I had to do to go on.
I've read that other users had problems with the hint button as well, and I'd say it would be fine to fix that bug.