I’ve had the G48 for a couple of years and was drawn to it because I’m a long fan of the G19. My hands are on the small side, and I liked the narrower grip on the G48.
Picked up the 365XMacro a couple of weeks ago…have about 600 trouble free rounds through it.
They both have Holosun 407c’s….
I recommend the Sig, since out of the box it’s everything you need and nothing you don’t….
My 48 is a great, soft, flat shooting gun….BUT at the cost of an Angency Arms trigger kit, extended mag release, Ameriglo night sights, tungsten guide rod and Talon grips.
Even allowing for the fact that the SIG is more expensive, by the time I finished “pimping up” the Glock, I’d have been ahead of the game -IMHO- going the 365XL route.
YMMV