When looking at Adobe Lightroom as a possible replacement for Aperture, I quickly discovered that it wasn’t suitable. Lightroom just can’t handle the very large files produced by scanning large-format negatives, and I have a number of such files in my photo library. Fortunately, a bit of searching turned up an alternative. Years ago I had used a product called iView Media Pro to manage my photo library, but it was bought and promptly killed by Microsoft–which led to my using Aperture.
It turns out that at some point it was rescued from Microsoft by Phase One, a company best known for digital medium format cameras, and is now available once again. That made it an easy choice to go back to Media Pro as my Aperture replacement.