Just tried PM5 and it looks ok. ... it does not seem a huge advance on the last version.
I realize it's all a matter of what features are important to you, but I am really excited about some of the new features of PM5. As a full-time photographer, anything that will save me time is huge.
The new crop features and the fact that crops in PM now fully compatible with Adobe’s crops is critical. Cropping in Lightroom is incredibly slow, even on my 8 core Mac Pro. The ability to crop my images in PM before import into Lightroom will likely save me a ton of time.
Having a non-modal preview window which allows me to keep the Preview window open and continue to work in the contact sheet as well is another feature that will save me lots of time.
I'm pretty excited about the new PM5.
Dave Burbank