Pros:

Extremely detailed campaign
Genuinely scary experience
Gives a huge amount of justice to the Silent Hill franchise
Great custom character and weapon mods
Superb level design
Custom scripts and interactable objects are perfect

Cons:

Some chapters can feel slightly too long
Some places can be too dark (well, for me anyway)
Ending isn't anything special

Conclusion:

Overall, I would say that this is probably the best custom campaign available. In some places, it left me truly terrified and scared to turn away from my screen in case there was anything behind me, which is perfect for a silent hill map! Even from the beginning, you can see the amount of effort that has gone into this map and it absolutely pays off as I was left hungry for more! A few times, I was aggravated by the length of some chapters and the ending wasn't as spectacular as it could've been but it is only a small gripe. The custom items such as the keys and newspapers give an extra level of depth to this campaign, actually adding some story elements. This campaign is absolutely brilliant and I can't recommend it enough! Great job dude!