A.

But the advice I will give to anyone who asks it is to be more cautious.

I'm a college student who spends countless hours tinkering with my mac anyway (so learning curves and early bugs aren't too much of a problem). I also happen to have my harddrive partitioned. This is quite unusual for an imac user, but it makes beta testing more feasible than it is for most people who don't have the harddrive space or partition set up. So I'd say, yeah, you bet I'm getting the public beta -- but I wouldn't if I were making decisions for a school, business, or if I didn't have the ability to rearrange my work schedule at the drop of a hat.