Remini, used in moderation, is a very useful app that can improve the appearance of certain pics in a way that would be almost impossible to do any other way. However lets be clear..... it does not improve the actual details.....it actually replaces them. It does this by searching through the millions of faces (faces only) in photos that are already online and finds suitable donor features.
The danger lies in the fact that ........
The first times that I experimented with it, I used a photo taken in the 1950s. Its a group photo that includes my brother and me, along with our parents and grandparents. At a normal viewing distance, after running it through the app, the results were very impressive. However, zooming in, these were faces that looked exactly like my relatives to the casual viewer...... but to me looked like doppelganger imposters! Their 'soul' had been robbed.
If I use it now, I make sure that as many imperfections and improvements as possible are dealt with before I use it and even then, I try to only include it at a reduced opacity with the 'true' version showing through in the layer beneath.
So...... I'm not knocking it at all, it works brilliantly, but the danger can lie in believing that its the be all and end all, it isn't, because without the skill and patience of ALL contributors to these pages, who turn out such fine work, it would just be another "instagram type" gimmick.