it held up much better than i expected in terms of gameplay and aesthetics on average (the original graphics, not the anniversary ones) but god this just completely shits itself after the sixth level. The Silent Cartographer, 343, Guilty Spark, and Assault on the Control Room are some of my favorite FPS levels in gaming but the last ones did such a number on my overall feelings about the game.

glad to have experienced this finally and am looking forward to moving onto the other games.