I never used PlexAmp, so can't say anything about it, but I switched over this year. It works a charm, on par with plex, at least for me.
But the main reasons I switched are:
- Plex not working when the internet is down. All my media is on my local network, why do I need internet to watch it:
- Plex definitely saving my media consumption history. As shown by them sending mails to everyone saying what their friends did.
- Local media seems less and less a priority for plex.