It's true, the writing is really unfunny in that special 360-era way. The gunplay isn't particularly satisfying either, and they all feel too similar to each other. It and its predecessor popularized one of the most lifeless AAA genres, though at least this one has the novelty of actually showering you with a bazillion guns instead of just like, a reasonable amount.

But with the right friend(s) and some pizza... it's a good time. Also Gaige is cute, at least in Japanese fanart.