I have had mine for about a month and a half. I have tried many of the smaller camera's (x100/x100s, XE-2) but the handling of the GX-8 is superior in my experience. I especially like the touch screen. Thought it would be a gimmick, but I use my thumb on the screen to move the focus point and to focus. Never have to take my eye off the VF. Speaking of VF, it is the best I have come across for mirrorless EVFs. I have seen the Olympus Pen F digital and it is almost the same. Still working out the lenses for it but have started settling on the Pana-Leica versions (15/1.7, 25/1.4, 42.5/1.2).
Panasonic GX8, Lumix Leica 15/1.7, Lumix Leica Summilux 25/1.4, Lumix Leica Nocticron 42.5/1.2