LINUX USEFUL EDITOR NANO!

Ok to day i gonna tell you guys to know what is nano, nano is an editor in linux every one can use it simply but most of server editors are using vi because vi is the oldest editor in the world but how easily can nano be ,nano have a short cut to config it won't like vi have to text all of word like :quit,etc... ,and nano can automatic changing insert or replace and save it simply rename ,so i think it was the best editor if you have another editor and you think is best please comment in the below