I am at about 400 rounds through mine. Zero stoppages thus far, I run CCI Blazer for practice ammo. I have a G17 Gen 5 as well, and the G48 fits my hand much better. In fact, I shoot noticeably better with the G48, probably because I can get a better grip on it. You might see a G17 from me on the EE pretty soon... Anyways, I'll admit that the narrow grip isn't for everybody, I must have smaller than normal hands.
It's got a bit more recoil than a G17, but not so much that it's effected my shooting. In fact, I think that my better grip mitigates the recoil and I can make follow up shots quicker despite the recoil.
My only real complaint about the pistol itself was that I really liked the G17 Gen 5's ambi slide release for the admittedly rare occasion of off-hand shooting, but it's not a deal-killer.
My biggest issues thus far are related to availability of accessories:
1. I need to get a holster. I haven't seen any in Canada for the G48 and I may need to go order something from the US.
2. I find that the G17 mag pouches are too big. The G48 mags sit in too deep, but at least they're narrower so while they are loose and you can get your fingers in there to pry them out.
Lastly, I wrote an email to
Deadpoint Lights, they make Glock guide rod flashlights. I asked them if they have a model that would fit in the G48, or if one is in the works. (I won't put a lasermax guide rod laser in, I read that they're terrible for holding a zero). But for a flashlight, zero isn't an issue. Anyways, if I hear back from Deadpoint, I'll post here and let y'all know.