To answer the question "were all my photos imported" vs "display photos in an Album in a list" then you could also my free open source tool
OSXPhotos to check a directory of files to see if they've been imported. The following command line will list files that have not been imported yet:
Bash:
osxphotos import --check-not /path/to/files
This prints a list of all files in "/path/to/files" that have not been imported to Photos. If your folder has subfolders with photos, add "--walk" to the command:
Bash:
osxphotos import --check-not --walk /path/to/folder