If you miss original Resident Evil games - play this!
+ This campaign gives a strong feel of first three resident evil games. + All puzzles work properly, but yeah, they are hard. + Very good atmosphere and level design. + Quite hard and challenging. + Puzzles solution is somewhat randomized, which gives this campaign some replayability. + Did I mention great level design and a lot of attention for details? + Very fun to play with skilled friends. - Unfinished, - Sometimes it's hard to understand what to do, but when you figure it out you will be like "Oooh!..." - Irratiating and not fun with bots, with map is clearly not for solo players and not for newbies, unless you play on easy.
Overall a good Silent Hill experience