I tried and tried with Darktable, but found the UI and features extremely frustrating. This [1] post, about a year ago, convinced me to stop inflicting pain on myself and move on. I use Capture One Pro now and am happy with the decision.
But I'm glad that DT exists as a FOSS solution for those who want that.
Moreover the churn of modules that are available but you aren’t supposed to use got old fast. I really do wish I could keep using a FOSS solution but Lightroom has taken my time to edit a batch of photos from many hours to under an hour with better results and virtually no learning curve. Sadly DT has managed to sell me an Adobe product.
One day!
Its bloated with useless functions, it's slow, UI is ugly... Why not focus on important? Stop developing another demosaic method and make it more user friendly, less nerdy piece of tool.