What a wonderful question, Edward.
Yes, I have played LA Noire for about 10 hours and overall I highly recommend it.
The game pushes the genre of games as "interactive story" to new levels, largely because of their new facial animation technology. They successfully built a game around this technology. The central aspect of the game is around investigating crimes and questioning suspects. As you question suspects, you watch their facial expressions and body language to determine whether or not they are lying. This mechanic largely works and is a new and wonderful milestone in video gaming.
However, the game has limitations. The interview process is essentially turn-based, as opposed not real time. This limitation can become tiresome after a while. Also, at this point I feel that the game has no over-arching story arch: rather, each investigation feels much like the last one.
There is much more to say about the game. I hope to see some in depth Hubs about it!