Mine's arrived and I've had chance for a little play. It's certainly - to use a cliche - a steep learning curve. I was rather hindered by gloves and my chance to play was caused by work being closed due to snow. My initial feelings are that once I'm used to it, it will be have as good handling as an SLR - possibly better. The 24fps sounds great but IMO totally over-the top so gone for medium which i think is 12fps. The photos don't look as good to me as my 7D mark ii and 100 - 400 combination but I guess that's to be expected and also may be due to my lack of experience with the camera and the far from ideal conditions. Photo below ISO1600. It has been sharpened but no noise reduction. Obviously it has been massively reduced in size. I think it will be become my most used camera but I not sure yet if I'll be selling the SLR.
The white dots are snow not noise!