Mix it up with some regular chalk and its awesome. I have not used it straight up, But I love it so far!

I don't know if it actually does any of the healing and protecting of hands stuff that it claims, but it does smell really good, and it's some of the best chalk I've used for climbing.

It is perfect, just the right amount of drying and it helps protect your hands from the harish rocks. Larry made a great mixture for this chalk.

My rock gym carries this stuff and I've been using it for about 2 years. Seems to be a lot better then other chalks I've used...seems to help with hot hand when climbing for a while

Like the stuff pretty decently. Can't say it's a huge, huge difference, but my hands aren't as roughed up. The catch to that is that they've become softer and won't take the same abuse as when I'd let them get dry and rough on a regular basis.
Seems to require more chalking up than normal, but less needed... if that makes any sense at all...(?)
I've gotta agree with the previous comment about length of time to receive. It took me about 3 weeks to get mine, and didn't magically show up until a few days after I sent an email asking where the product was. Coincidence? Dunno... Was a bit annoying though, so be sure to order way in advance if you are running out of chalk stock.
I'd give a 5 if it weren't for such slow service. I really hope that gets changed soon.