Got to a calibrated screen and started to look at some samples. I like the skin tones in this review:
http://www.jupitersnake.com/review/leica-s-typ-007-s-007/but I suspect they may be adjusted, as the same review says the JPEGs are not so good.
The DP review image gallery is, well, quite dreadful if I dare to use such strong words. What's up with the over-saturation? Haven't tried the raws.
Then I've looked at this:
http://www.l-camera-forum.com/leica-news/2015/09/leica-s-test/the images look quite edited, but the same overall color look as in DP review is there, too warm, too saturated.
So sure I think you can get good colors out of this camera, like from any modern camera if you have some post-processing skill, but the default look seems pretty bad to me. But I guess I don't have the same refined taste as Leica users :-)
Some cameras get a lot attention on the net, others not so much. What about the H5D-50c for example? Without any personal experience of that particular Hasselblad model (my own is H4D-50) I dare to say that the default look out of Phocus is a ton better than what I've seen here from Leica S.