I like everything about it that I liked in B5, I don't (yet) see anything new. In fact, much was removed that is sorely missed, especially with regards to the catalog. I still don't understand that major step backward... Hopefully these removed features will be added back, or something equivalent will be added instead.
So, I like what I always liked about B5:
+Linux Support
+Multi-threaded
+Great Plugins
+non-destructive editing
Problems/Bugs I noticed:
-On the RPM installer for linux, the libstdc++ package is missing, so it was a bit of a headache to install
-On the Color Correction panel, the Luminance slider is broken -- it doesn't do anything.
-With B5, a double click on a thumbnail would enlarge the image, a double-click on the enlarged image would take you back to thumbnail view, on AFS-pro, it instead toggles between enlarging the image and shrinking -- very infuriating!
-I really miss some of the B5 plugins that were out, like zblur, Harry, Sally, Pixie and a few others... I hope those come over soon!