First off, previous reviews have shown that the game had difficulty installing. Upon a recent update, apparently gamefly has recognized the outcry of missing files/patches and now recent downloads from their beta client have been successful in installing.
For those who have purchased the game earlier with no success of installing, uninstall and delete all LA Noire files from your PC (even from C:\Users\xxxxx\Documents\GameFly\downloads\60648611). This will allow gamefly client to realize you need to download the files again from them. And from this, just install the game like any other.
As for the game, I've been playing it non-stop! Great story! Easy to get into gameplay! and the graphics are amazing! If you're wondering how smooth it is on your PC compared to GTA4, it's much smoother. To this day, GTA4 is still sluggish on my PC, but I can run LA Noire at 60FPS on quality settings! Don't pass this game up! I purchased this game for $5 during the summer sale! This is well worth the asking price and then some!
Please don't let the previous reviews of "not being able to install the game" be a deterrent from a great game!