I sold my Q3 43 in January to buy this. I'm selling because my eye naturally sees a smaller field of view and I've yet to take a good picture with the 28, so I'm going back to the 43.
The camera has no issues with the operation. Cosmetically it looks brand new, from about 1 foot. There is a small, (1/2 inch) hairline scratch on the top plate. Not noticeable unless you know where to look and the light is right.
There is a small scuff on the top left corner of the rear screen. Again, not noticeable.