Giving up the file system is difficult but it’s a godsend. I hated losing the Events when moving from iPhoto to Photos, but in practice no one wants to organize photos and I certainly did not enjoy it, as anal I as I was.

Nowadays we don’t have events anymore, it’s just a continuous flow or random photos that may or may not belong to a specific event. The great part is that photos are always in chronological order and I never have to deal with “files” (copies, same names, etc).

The only exception are professionals and Photos.app definitely isn’t intended for them.