I tested in-camera RAW development with my Ricoh GR and I have to say that I was very positively surprised about the results I got. I think it will be handy tool for some of the shots. At least I can easily develop RAWs into my beloved high-contrast B&W and get much more details when my starting point will be a RAW shot. Below is an example of this (from RAW to high-contrast B&W). I did 1×1 cropping also in-camera.