My initial reaction after importing ~30,000 from Aperture was oh dear 
I've recreate some of the Smart Albums lost in the conversion and now have something that resembles my project structure, so will give it some more time.
Can't see it handling my import/backup workflow very well, or editing externally although recently I haven't been doing so much.
Having recently looked at LR5 and Capture One I'm really hoping I can make this work, even if it means somethings are a little more difficult, as I didn't like either of them!
I've recreate some of the Smart Albums lost in the conversion and now have something that resembles my project structure, so will give it some more time.
Can't see it handling my import/backup workflow very well, or editing externally although recently I haven't been doing so much.
Having recently looked at LR5 and Capture One I'm really hoping I can make this work, even if it means somethings are a little more difficult, as I didn't like either of them!