My transition from Bibble Pro to Aftershot Pro has been a mixed experience. In image areas with large contrasts, like dark branches against the sky, colour artifacts appear, sometimes leaving Aftershot unusable. Initially I suspected my new Nikon J1 to be the cause of the problem, but I had seen those artifacts, similar to moire, in images from my D300, too.
Re-installing Bibble Pro provided the answer I needed. Bibble Pro still produces the sharp and clean images it always did, from D300 and J1 alike. This has to be a bug, and until that bug has been fixed, I will have to rely on my good old Bibble Pro, or ViewNX.
Aftershot Pro: http://kupuna.net/guests/dsc_0168aftershot.jpg
Bibble Pro: http://kupuna.net/guests/dsc_0168bibble.jpg