Most of the photography I do with my iPhone is stills when I don't have my Lumix FZ2500 (the camera you have...). So framing closer in without compromising quality is handy, for example for flower photos or people. It's also handy for what you might call utility photos, taking notes by way of photography. As to faces, back in the day, I had a Nikkormat with a Nikon 105 mm "portrait" lens, which was wonderful for people pictures, avoiding both the big-nose and in-your-face problems. I think the 52 mm on an iPhone would have a similar advantage compared to the 26mm, giving a more pleasing portrait image, and not invading the subject's personal space. (Though nowadays, in the selfie era, maybe most people see big-nose and in-your-face as features, not bugs.) Handheld video with the tele lens would be much harder, of course. Even so it could be useful in pulling 8MP frames from the 4K video. I haven't used the tele lens with the Movi. Freefly's videos mention that it would likely be problematic. In any case, for the moment, I'm using the iPhone Upgrade Program, so the 11 pro is essentially a straight upgrade from what I'm used to (Xs), and even a few dollars a month less expensive.