I don't know if it's improved, but I was only put off by the memory footprint on windows. Plex was running more efficiently and does look more polished. This was also impart as I now use Channels for my live TV purposes as nothing else really comes close.

It's still installed and ready to go if I need to make the switch but I don't really have a big enough reason to do it. Too many other things to tinker with.