This Review is more than likely how to get the game working from Uplay crashes. The Uplay downloading from steam is outdated, do not open the game after you finish downloading it. Do not think for once it is like Origin/EA Game giving away your CD Key to another friend because it will not work like that.
1. After downloading on steam, do not launch game!!
a. If you did install Uplay from Steam, uninstall it.
2. Download the latest Uplay from the original website.https://uplay.ubi.com/#!/en-US/
3. Launch the game from steam. Use the CD key on steam and activate it on your Uplay account.
Now you can launch the game from steam all your want.
This game works on Windows 8 completely fine.
Uplay has two singleplayer challenge content you can grab after gaining Uplay points.
"Tanners Day Off" and "San Franscico Challenge"
These challenges help your story mission by winning points to buy vehicles. They are worth grabbing. The other two is on your own. Not many people play multiplayer, so I suggest not to grab "SRT8 Police Car" as it is for multiplayer only.
Initiate Uplay Achievement -> Reach Multiplayer Rank 5
Tips: Doing first Tutorial mission for multiplayer will get you from Rank 0 to Rank 1.
This achievement you either have to play with a friend or play online with 1 other person. Getting to level 5 is very easy and within an hour or two. Multiplayer content doesn't cross over to singleplayer. So those who bought this game for single player don't have to worry other than this achievement for 20 Uplay point to unlock contents.
The Actual review. This is a must grab for racing fans. It is a free roam driving game rather than a GTA like game. You cannot get out of your car. There are many racing in this game with a lot of Hot Pursuit chases. If you are a fan of "Need For Speed Hot Pursuit", you'll love this game. This game is what "Hot Pursuit" should have been like with a story mode.