Jellyfin is a fork of emby. I'm not sure the state of it now but when I chose jellyfin it had most of the emby paid features and from a quick glance the UI hasn't improved much while jellyfin has gotten a lot better.

The party changes were the most frustrating part for me, you never knew how long it would be or if anything major was going to happen so it was a toss up on whether it was worth spending the 5-10 minutes swapping gear around to maintain a balanced party. The entire game I was excited for the next one right until I finished and my first though was, "thank fuck I don't have to rework my gear again".