I picked up the Nurgle's Rot and Blood for the Blood God paints yesterday. Tried them out this morning before work and I'm liking what I'm seeing so far. GW has a series of videos on the website and their Youtube channel explaining how to use each. They are about 2 minutes in length. I've used another company's verdigris paint, liked it, so I'm sure the GW version will be just as good. The rust and wash look like they will be the all-stars of the group. I'm looking forward to getting a pot of each. So far, it seems like no one is happy with the cracked earth paint, I'll reserve judgment until I try it out.