Just received my H.I.S. brush and tried a few test lathers on Conk's Bay Rum (oh man does this stuff smell great!). I have a pic of the first one I did, which I thought was actually pretty good. I followed the steps of one of the tutorials in the Soap section that's a sticky and my lather turned out quite nice.
As far as the brush goes, WOW! I was blown away at how soft the tips are. I don't really have any other brush experience to compare it to so I can't make any judgments about the rest of the brush, other than it is a little too big for me. I don't have that big of a problem with it, though. My next brush will definitely be smaller. All in all, I'd say it's a great first brush- it may have set my expectations for softness too high, though!
Waiting on my Gillette blue-tip. Hopefully it gets here tomorrow like the Bay says. I'm going to go out and get a Mach 3 out of sheer impatience. Plus, I have to shave for work ;)