Hello, Magnus.  I was in a similar situation.  As a Sony camera owner I was using a free, but limited, version of Capture One.  I liked it so much that I paid $50 to update to the full version.  I watched many of the hour long tutorials on C1 (both on their site and on You Tube) and even used the software to prepare 80 pictures that I subsequently inserted into Aperture to publish a book.  I was in the anything-but- Lightroom camp.  While I found C1 to be very powerful some simple things bothered me–no simple compare button, limited healing/cloning, inability to distinguish duplicate images when importing, no mapping functions, etc.  Perhaps these are now fixed.  In any case, I found ways to live with these differences.  I liked the fact that I could continue using managed libraries.

To be fair, I then tried LR.  First I watched some videos in Lynda.com and then many short ones by Julianne Kost. Despite what I’ve read from others, I found it quite easy to work in LR.  I like many of the features: lens correction, perspective correction, the compare functions, maps and the possibility of doing books.  There are peculiarities, no doubt.  Working referenced is an unexpected challenge as well as the constant switching between modules.  But using the keyboard shortcuts (there are probably 10-12 you must use in order to work the program halfway well) and being able to find so many answers easily on the web, made the transition easier.

Unlike others, I have not tried to convert old libraries to LR yet.  I’ve simply committed to using the software with all of my calendar year 2016 images.  So I haven’t had to deal with capturing old Aperture adjustments.

In sum, it was just the look and feel of LR that made my choice easier.  That, plus the incredible amount of help and instruction available.