You might enjoy Mike Zamansky's blog post and short video about it: http://cestlaz.github.io/posts/using-emacs-25-tramp/#.W2HhPH...

Also, the manual is pretty good. It comes with Emacs, of course, or can be read at https://www.gnu.org/software/tramp/

My favorite thing about TRAMP is how well integrated it is. It's not just opening remote files, you can also open shells on remote systems, or do file management with dired (I have a bookmark pointing to dired on a remote system I use frequently, for example.)