Sign me up as singularly unimpressed with Photos. The biggest issue for me so far is the complete lack of control on how photos are organized in the main view panel. Even sad old iPhoto had a Sort menu option that allowed you to vary the sort order of photos. I see a greyed-out item about sort in the View menu which indicates that the photos are sorted by the "date added." Since I add a lot of old photos view scanning, I don't want it sorted by date added but by the date I've put on the photo. However, you can't change this, or if you can it's not obvious how. This is a major missing capability. Also, the ability to show metadata in a right-side panel is gone. That was useful if you wanted to step through photos in the main panel and see what dates and locations they were for. And what exactly is the thinking behind how photos are ordered and displayed in the Faces view?