Yeah it wasn't that great apart from the crude humour, and it got refunded back today. Great for the sentimental value it holds but other than that, it's not really anything quite special.
Just finished playing around halfway through the game (before work called me in.. ) It's fucking hilarious. You don't buy a Duke game for the gameplay, you buy it for the crude jokes, over the top sexual references, pop culture parodies and over the top violence. Nothing against anyone who bashes DNF, but you had to really enjoy and appreciate DN3D to appreciate DNF. I've already had several moments where I had to pause and crack a beer because I was laughing too hard to aim properly
I was really looking forward to it, but most reviews are saying it's awful. I'll probably give it a try anyway.