The Downward Spiral
Heh, I definitely see where you're saying when you mention NIN influences.
You have the background industrial noise down PAT. All the build up to 0:44 was excellent. I wasn't really digging the vox that come in at 0:22. Not that they sounded bad, I just didn't feel they blended as well as maybe more noise would have.
Love the way the piano sounds. The guitar in the first part is great too. It's role in the second half of the song however sounded a little more unpolished to me, almost like the track was clipping at points. I downloaded it and opened it up in Audacity just to have a look and it isn't clipping, but it could just be the quality of the recording (if you actually recorded it).
Also - my apologies if I'm wrong about it being a guitar. For some reason right now I'm having trouble distinguishing the sound.
All that aside, I actually REALLY got into it. Especially great super loud on my headphones. I was disappointed by the length. I felt like it could have really gone on to become something big. Great stuff though.