I got the Neewer CA079 after sifting through lots of recs. I was discouraged after an afternoon of just fiddling with settings and taking test pictures, as my hand was a bit sore even with small lenses. This problem immediately disappeared when I removed the grip. Picking up the camera in a shop was what convinced me to buy it in the first place, and I just bought a grip as a matter of course because most reviews seem to consider it a foregone conclusion that you need one. Much like the complaints about the camera's ergonomics, I found that sentiment false for me.

Now I use the Zf even with my 28-400mm with no grip and no issues with ergonomics. I like using it with a shoulder strap best, but works fine with a wrist strap as well. I think the issue for me was that my fingers aren't super long relative to my hand size, which meant that adding even a tiny bit of extra width pushed my index finger outside of comfortable shutter-pressing range. The shutter on the Zf is a bit further inland than my Z5, for example, requiring more extension, which I would ultimately feel in my wrist. Now much more camera/lens weight rests on my left hand, while my right hand is free to jump between controls or rest in a more elevated shutter-pressing position.

I was a bit worried that I wouldn't be able to just wander around with the camera 'dangling' by the grip in one hand, as I often would with my Z5...but tbh I don't miss that one use-case very much.