Ok, wow. I finished this game last night, and it was great. I loved the atmosphere, and I loved the pacing of the game (I didn't mind all the cutscenes and QTE at all). The story pulled me in, and I want to see more of it.
Like others have said, I completely forgot about the blacksight until the very end.
Yes it was a bit short, but I can live with it. It still took me about 12 hours to complete on hard though, but I really spent my time looking around.
There were some great vistas and backdrops, so I took a few screenshots, hoping that Sony will allow us to use as backgrounds soon.
I will go back and try and find all the collectables, and should be an easy platinum trophy to get.