Personally, I dont like either PLEX or Klexi as much as AirVideo and here is why. Plex is not a true media server.
Sure it acts just like one, but in order for your files, videos etc. to show up in the program, the program must be able to affectively read the files name, in order to add artwork, IMDB data etc. AirVideo is a true media server in that it adds everything from the root folder, sure the interface isint as nice, and there are some missing some cosmetic feautures, but I can rest assure that every file will show up, where as some dont with PLEX and Klexi.