Complicated for me was trying to use catalogs to manage 11 years of photos (~110 thousand files). LR gave up, C1 tried but grinded my PC to complete halt. It. Was. Sloooow. Unmanageable. And yes, I have UNIX–ish background, so scripting wasn't a challenge really — all these scripts together is like 20, maybe 30 lines, really easy. Additional feature of this workflow is, that I can change the RAW development tool, or even operating system (eg. switch to Linux with darktable) and the workflow stays the same.