Yes, this Addon for KODI is a safe video plugin.
The channels are all free to stream and watch so you will not have any issues at all.
Yes, the Free-IPTV playlist(s) is totally legal. All the credits go to the Free IPTV repository on Github, so you may want to leave them some feedback on and also to contribute if you want to. Needless to point out that the work is not mine nor am I involved in any way.
