I bought a G48 in early July and I now have just over 400 rounds through it.
I really like it. Currently my warm weather concealment gun is a G43 and the cold weather concealment gun is a G19. I'm not sure the G48 will replace either gun in that role, but I really like it anyway.
I taught for a total of 13 years in the local regional police academy. I REALLY wish a Glock in this platform size would have been available 25 years ago. In every class we had two or three shooters (usually females but not always) who had small hands for whom a big service pistol with a double column magazine was too damn big. If they had S&W 59 series guns, we'd try to steer them to a S&W 39. If they had Sig 226s, we'd aim them at a P225. If they had a Beretta 92F, we would suggest a 92M. But there was never a Glock with a smaller and thinner grip we could offer as an alternative. The school had Arizona Response Systems do a grip reduction on a G17 and G19 that we used as loaner guns and that worked pretty well but a gun the size of a G48 would've worked better.
I think the G48 would make a great duty gun for shooters with small hands, presuming somebody begins to produce a suitable duty holster.