I, too, love wearing men's scents, including Pi. I can also see where you get a similarity between Pi & Gaultier2 (another favorite of mine, as well). I've seen a lot of fellas on this site claim that Pi is too feminine for their tastes. But I agree with you, this one could definitely pass as unisex.
This one's kind of funny on me, though. I was really looking forward to this past winter so I could wear Pi underneath a cozy sweater. I noticed, though, that I actually prefer wearing this in the SUMMER when my skin isn't as dry, but as long as I'm in someplace that has the A/C cranked up. I got a LOT of compliments on this when I wore it last summer to a bar that's rather notorious for being as cold as an igloo during the summer months .