I borrowed this from Judy and just beat it, and yes, it actually does a good job resolving the dangling plotlines of the series. Of course, the plotlines of Metal Gear Solid are so absurd, trying to make sense of them serves to underline the craziness even more.

You know exactly what to expect from MGS by now. Cool gameplay, great graphics, amazing attention to detail, a bizarre and sometimes juvenile sense of humor that clashes with the serious themes being explored, and cutscenes that are compelling but always seem to take much longer than they should (Minor Spoiler: The game's very last scene has to pose a record for the most prolonged death scene in any visual media). Frankly, if MGS2 wasn't enough to turn you off the series forever, nothing will. If you're still a fan, I can easily give MGS4 a solid (ahem) recommendation.