Good Demo, Vocals could use a tiny bit of polishin
Don't get me wrong, this is clean for a demo. I'm critiquing very specific things which for demos can be negligible, but help with mixing for the Pop Radio Crowd.
For Vox, Perhaps try backing off the mic a little bit to avoid clipping and perhaps putting the vocals in stereo. Stereo can be achieved by either recording to two tracks simultaneously or just doubling the original vocal track and panning one to one side and the other to the other side. Depending on what you record with, it can be achieved with certain imaging plug-ins as well.
You manage to pick up some tape hiss sounds as well, which may happen because you record incredibly loud some parts, but during the verse everything else drops out. If you want to get rid of that sound, record everything at the same volume and use volume automation or sample editing to create the dynamics.
Also, the bass is fine for the most part.
Otherwise, you have a good accessible grunge sound.