I got one when they first advertised lifetime Plex Pass. I got it super cheap since I've been a member for so long. Paid for itself many times over.
@AcuDefTechGuy one of the main reasons you're seeing Kodi under-perform is because, like Plex, most of the dev efforts aren't in the HTPC space anymore. Plex almost pulled the Plex Media Player because they didn't think people used it. They were wrong and had to back track.
The other difference is Kodi is and has always been open source and free. Plex isn't. Granted, you get TONS of stuff without having to pay, but it's worth it to pay to support the awesome product as well as get the extra features.
Music has come a LONG way from what it was. There is now a MUCH better metadata agent and it is light years ahead of where it was when it comes to song/album recognition. As long as your collection follows their naming convention, you are golden. It'll take awhile to grab all the data, but it's worth it. This is the first time my music collection has been solid in Plex and they just came out with that update a few months ago.