Very good
Its fast, stream with great quality, support subtitles (with auto-downloading), support metadata from external sites so you can see if a movie is OK or not. In general, great!!!
Issue: the application server in the mac computer is not as easy to configure, iTunes integration is null (you can add your music, but your lists already there will not be displayed, so, use home sharing instead).
eddietec about
Plex: Stream Movies & TV, v1.1