If you like Company of Heroes....
I was a huge fan of the original Sudden Strike, but for my own reasons, I have stayed away from the series until recently and that really put me in a bad position with this game at first.
It had been 9 years since I last played Sudden Strike and recently all I had been playing was Company of Heroes but I was hungry for large battles, with historical accuracy. So I got Sudden Strike 3 and jumped right and within a few minutes...I was slaughtered. So I tried it again using a bit different tactics and I got slaughtered again and again and again and again. I searched for cheat codes (just until I could polish of the rust) and found none. I was just about to give up and uninstall when I decided to use a more conservative approach to the game. Saving often, avoid frontal assaults (especially when the enemy had the high ground), started flanking, using artillery as a shield, slow and deliberate movement (gaining ground inch by inch). All of sudden I was starting win and everything started to come together. It took several several hours before I won the first battle (on easy) but it was worth it. That was several hours of entertainment...on one mission instead of a few hours of entertainment on an entire game.
Basically if you just take some time to get use to playing a different type of strategy game (one that actually REQUIRES the use of strategy) then the game becomes very enjoyable.
The graphics are decent, and really don't seem that much better than the original. Don't get me wrong, the game looks nice but nothing close to other recent RTS games.
The sound is just outstanding. Honestly all the effects are just pure gold and really pleasing to listen to. The mission voice though was done somewhat poorly however you really do not hear it much.
Path finding is somewhat poor in some areas (trying to navigate around other vehicles/infantry in motion is the main problem I have with it).
All in all it's a great game IF you are willing to actually LEARN it. Learning can be fun and it actually rewards you with the feeling of accomplishment.