So why do you like Kodi better?
I just downloaded Kodi last night to one of my laptops to play around with. I like PLEX for my movie library, but wanted to try out Kodi for sharing some of my other junk that I don't want to have to wade through when I am playing movies (i.e. SW:Rebels episodes and other cheesy videos or TV show episodes that I have collected over the years) . I have yet to do much beyond set it up, but I am curious to see what it has to offer.
First of all, I have none of these issues experienced by the OP - I install the Kodi client software and it works. I have a server configured with standard NFS shares and TVHeadend for FTA DTV streaming to all my Kodi devices, and best of all - It's all free.
There's no way I'm paying for the 'privilege' of using Plex and I'm not interested in creating an account to use my media streaming software.