The best thing I like is the setup. All you need to do is clone the code and configure the file. That's ALL. Also, their development team are too supportive on IRC. The response is like within 1-2 hours. Whenever I encounter any error or got stuck somewhere with their guidance I would able to solve them within the same day. Review collected by and hosted on G2.com.

There are some features which are available in others paid server. But I guess that ok cause you can always contribute to the community to make it better. The second and most important is security, we have to add a feature to encrypt our chat in database so that no one can read them through database. Review collected by and hosted on G2.com.