Still playing with the demo, overall it gets the thumbs up from me. LR is just my kind of program (PS is overkill for me)
But...
The slideshow module seems a bit wonky. I tried to export to pdf and jpeg, and sometimes many images are just missing...strange, maybe a bug or something.
The other thing I really miss is some distortion correction, even manual..would be nice. Amazed this didn't make it in version 2.