Attached Link: http://www.cgtalk.com/showthread.php?s=&threadid=77779&perpage=15&pagenumber=1

Your very right in your thinking that it's not a traditional modeling program. You can move, mold and shape with a paint brush,instead of pushing and pulling points. You can turn any image(like a face)into an alpha mask or stencil,and apply to the mesh...then model the shape. You can paint and texture right on the mesh useing any image you like. You can create orginal characters in a much more "free form" way,than you could with a traditional 3d modeling program. Check out this thread (link) at CG Talk. BTW...I like ZBrush SWAMP