It's very nice. 20 years ago I used it in school to store files and run software on my school computer via a boot with Damn Small Linux flash drive. It was so cool! Or I would use the Windows system with PuTTY.

Still I use it and a friend turned me on to mtux which is really nice for multiple shells through the same ssh instance.

Also having the public and private keys exchanged ahead of time make for nice no password logins.