Son's been using this soap, and highly recommended it, so I finally got a cake. I've now used it two days.
Holy crap, this is good stuff.
Wet the face, wet the brush and work up some lather, soap the face. Wait about a minute, and shave. With a blade that'd already been used a few times it shaved clean and smooth. I like it.
The other good thing? Yeah, the cake cost about $23 with shipping; son's been using his last for over a year now, still has a month or two left; that spreads that cost out over a long time.
I'll throw in that using a safety razor has good points, too: instead of $4/each cartridges or plastic razors you throw away after a few days, a set of ten Wilkinson blades is about $3. The higher-quality blades are more expensive, $2-2.50 for five. Takes a few days for your face to get used to the new razor, after that you're good.