Faces also seem a bit pixelated and don't have much detail. But, beyond this, everything else is great. The frame-rate is always smooth and the locales are huge. The sound in Metal Gear Solid is the true star of the show. This is the best sound I have ever heard in any videogame.
Every sound effect is great and the music is wonderful.
And, believe it or not, the voice acting is awesome. I assumed I was going to hear lousy voice acting. Given the track record of voice acting in past games of this sort, like Resident Evil, it seemed like a pretty safe bet. This isn't a video game. It's a more like a movie that you control and play.