Don't forget Affinity Photo! When I tested the trials of Affinity and Luminar, Affinity won hands down for me! It was much more intuitive and logical to use.And why C1P, Picktorial, Luminar, and others are serious alternatives to Lr. It could be a very different landscape in photography tools by the end of 2018. It is always good to have choices.
If I ever get off the Adobe roundabout, I'll probably go to Affinity Photo.
I agree, there's some great alternatives to Lightroom, sort of! I haven't found anything that makes the import/catalogue processing as easy though! And that includes PhotoMechanic.