@Szilvia @baldur both :). Darktable has a steeper learning curve I agree. There are also a lot of improvements with the recent versions. I like it mainly because it is open source.
You may want to also have a look at Dxo. It is much more user friendly than darktable and extremely powerful. I used their product for a long while after I ditched lightroom.
@iar81b @baldur
Again. No. I don't know why you seem to think I need to stop using an old version of Lightroom that I'm perfectly happy with. The others don't offer me anything better.