Well, I just got the download, but once I figure out how to use it I'll let you know. 

I seriously doubt that 3DCoat is a replacement for Modo, the best, most versatile modeler on the planet. I even have doubts that it's a replacement for Zbrush, the ultimate displacement tool, but the easy compatibility with Vue was the main selling point for me—that and the low price.  

It should be good for boulders and bark, at least. 

Download my free stuff here: http://www.renderosity.com/homepage.php?page=2&userid=323368