Just finished.
Honestly, I can't say that I really noticed much of a difference. My lather was a bit thinner than usual after lathering on top of the bay rum, but it didn't seem to effect the shave. Had a great shave, nonetheless, but that's par for the course.
For guys that are using it successfully: How much bay rum are you using? I think I may have used too much; around a quarter sized amount in my cupped hand. It didn't take away from the shave at all from what I noticed, but it didn't really seem to help anything, either.
My skin does feel awesome, though, so I did reap some benefits from it. I'll keep doing this for a few shaves to see if I missed anything.