The game is very good. My only complaint was that it was too easy. I didn’t die until the last level, at the beginning of it. Two of the beast bosses I killed without even getting hit once. However, I am now playing through again with only non lethal weapons, and it is quite a bit harder doing it that way. After that, like the rest of the MGS games, I am going to play through for the Big Boss ranking.
The ending was incredible: HUGE SPOILER
[spoiler]Having Big Boss debrief you at the end was awesome![/spoiler]