Logitech Media Server vs Plex

Can I ask for feedback about using LMS?
I am a long time Plex user, mostly for music.
Plex has always been a bit of a battle to get it to use embedded metadata over scraped metadata. LMS is supposed to be better in this regard. True?
Plex makes it very easy to access from WAN - is this also the case with LMS?
Doe LMS have a good iOS remote control/listening app?

I am also a longtime Plex user, can you access the media outside your network using LMS?