Comparison of Photos V8.0 vs PowerPhotos re Merging Libraries

I ran a number of tests with a 50 photo library with albums, smart albums, folders, keywords, captions, keywords and locations. I merged it into an empty library using Photos and PowerPhotos. This is what I found was imported by each;

PowerPhotos: Photos:

Albums -----------

Smart Albums (as regular albums) -----------

Folders -----------

Captions Captions

Titles Titles

Original images Original images

Edited images Edited images

Locations Locations

Favorites Favorites

Can detect and exclude Duplicates detected after import

duplicates (or not) during import

Neither method included projects.

Both methods could import older iPhoto libraries into a Photos library when the iPhoto library couldn't be migrated into a Photos library.