Everything! I've been using this software for many years now since 2010 when it was not yet called teleda, but rather simply WLAN router plus firewall (or just one). Great solution at least in our country where there are no good free services out of competition - only us as an individual can offer anything that might fit needs or expectations. Sometimes some things take time; sometimes you need to do something manually so there're always little gaps during transition phase. When everything works well its great. And all those problems disappeared after 2nd day with proper setup/setup process which does cost money if done without help of professional service provider like ours which has more than 20years experience behind itself :) I like that it is easy to setup and configure. I also like that it is a platform that is scalable. I don't dislike anything about it. It is easy to use and setup. We have been able to reduce our costs while keeping up with our service level agreements. I am able to control my network better than with a traditional router. We are able to control who has access to our network.