Nothing bad that I can see, just a "fork" of Kodi 16.1. It's basically an update to TVMC to Kodi 16.1. The best reason to use it would be to have two separate installs of Kodi on a PC or a MAC, and they should be able to run independently. If there is a negative, you are running someone's build, which you may be at mercy to the author, but you can do your own customization from this base load.