Nice camera but the price is killer.
The lens speed boost was badly needed because high end compacts like the Panasonic LX7 effectively had a faster lens letting in more light and offering a shallower DoF despite a smaller sensor. Plus being wider at the wide end is a big gain for many people.
Thing is at that price there are many better options out there. The MK2 was overpriced as it was.
I would much rather have the Panasonic GM1 - smaller and lighter, better images and more versatile. The problem withe most compacts and fixed lens solution is you get lenses that cover the middle ground, but I want something that covers the wide and and something that covers the tele end. That can be done in a small light package using an m43 or other mirorless syste, which is why my compact/casual/pocket camera is just an Olympus EPM2, DSLR quality that fits in my trouser pocket with the lenses I want.\
Still, the RX100mk3 looks pretty serious spec wise and for people that work in the 24-70mm zone it could be very handy.