Looks good, I'll give it a whirl. I could never figure out a good darktable workflow. The UI seemed all over the place with some basic features missing and way too bloated in certain areas that I imagine 99% of users would never touch. Hopefully Ansel has figured out a better feature balance and UI.
My current Linux photo processing tool is Another RawTherapee [1], which is a wonderful blend of the power of RawTherapee with a UI that has a lot of similarities to Lightroom.