Actually, for $49.99, you can get
a 'bundle' of other items through the end of September.
I don't believe ON1 even has a "cataloging" function, but you can create your own system and then use "smart" folders, and/or create folders with any group of images and other sorting/grouping options. The lack of forcing a cataloging system on your images is one of the things they intentionally did not build; you keep images anywhere you want and ON1 just keeps an internal catalog of where they are along with the effects and filters you may have added. I am anything but an experienced user, of course.
And, like any powerful program/work flow, it will take time to understand when things are done a different way. But they have some excellent videos on how to use most of the functions. Their major supporter, Matt Kloskowski, has some very through tuts, as well. He has also done courses for Lightroom and has extensive knowledge on both programs.
Frankly, I hope all of Adobe's competitors do well.