Well, the first wave of reviews are in, and it looks like somebody's gonna freakin' pay for screwing up Duke's comeback. IGN gives it a 5.5 and offers us this stinger: Duke has not aged well. As simple as he ever was, as irrelevant as he's ever been. Ouch! Joystiq gives it similar treatment: Allow me to borrow Duke's trademark line which he, in turn, borrowed from a fellow 1990s artistic endeavor, Army of Darkness: "Don't come get some." PC Gamer was more forgiving, settling on an 80 score, but warns us that the development-time-to-awesomeness ratio isn’t impressive.
The complaints are many and numerous, but most come back to how long this game took to make and how lackluster the finished product finally turned out to be. Wikipedia even has a special page just for the game's long and storied development cycle, which according to them went into production in 1997.