Any thoughts on the Autofocus method? It seems to have had a heyday I missed about 10-11 years ago with apps made very specific to it kind of being end-of-lifed

Any thoughts on the Autofocus method? It seems to have had a heyday I missed about 10-11 years ago with apps made very specific to it kind of being end-of-lifed as of 5+ years ago (sadly), but it looks useful (and not at all culty)