Here's one of my results with the RX10 II and Davinci Resolve 12 (Win64).
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Source: 4K Slog2.
Colour graded (with LUT) and exported to h264 1080p (15.000 kbps).
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For the audio, I used a RODE Stereo Videomic Pro. It records LPCM automatically, which is quite interesting. The camera also seems to automatically adjust the audio level.
I did some 4K exports before, but as it's mpeg4 (the free version won't allow me to export 4K in h264), the blacks are simply awful on YouTube and nothing like what I saw on R