I recall playing this years ago and getting stuck on one of the puzzles very early on. Its a shame, because even though I'd only played an hour or so, I could tell the mod seethed with potential.
Great review Lewis, as usual. I recently played this as well and its a fantastic mod. When it's at its best it rivals HL2, and even at its worst it is still better than probably 80% of FPS on the market.
Supposedly the guy who made it works for Valve as a level designer now, which is a shame because we probably won't see the second chapter.
IF YOU WANT MORE BEATS FOR YOUR BUCK THERE'S NO LUCK.