I tested my new “C1 ICC profile workflow 
” on several images and I find it pretty easy.
- Set C1 ICC profile
- Adjust exposure and black level correction so that you do not get big clipped areas.
- Adjust unbreak input profile parameters (the functionality here is equivalent to the filmic rgb and from now on, the pipeline is display referred)
- Adjust color balance rgb.
- Maybe apply filmic rgb to get some small clipped areas into the range [0,1]
- Local contrast.
At the end is pretty much the same effort as using the scene referred workflow but maybe I think with the disadvantage that you are practically working with display referred workflow.
Personally I like the results a lot by now and I find it easier to control and fit the dynamic range within [0,1]. I also do not get the color shifts at extreme luminances that filmic rgb v6 was giving (remember this: Comparing filmic color science v5/v6)