It'll destroy all your painstakingly crafted and curated ID3 tags much faster than Picard. I'm not salty or anything. Anyway, the lesson for me was that music is simply too complicated from a library perspective to trust to highly-automated tools like beets. Picard kind of encourages you to go directory by directory and release by release, and that is a good thing. These days so are does most of the library stuff for newly added things, but I usually end up fixing it all basic to my standard with Picard later.