I have 100's of hours into this, which I didn't expect to do.
The campaign is pretty good and interesting.
The DLC's are kind of a mixed bag for me, they are all pretty much co-op additions where I was hoping for more SP action but they are still pretty good fun.
You definitely get your money's worth out of this game,.. and not to mention that the Devs have actually listened to the community & constantly fixed issues for over a year now and added content .
That alone is pretty rare to see from any company....so it gets a double thumbs up from me.