Fountain pen requires some skill to write well. It's amazing in the hands of those who knows calligraphy and just creates extra smudges for those who are more used to normal pens.

It takes no time at all to figure out if your only real goal is "I wanna be able to use this as deftly as a regular pen". Really no more difficult than knowing how not to smudge marker by closing a book while it's still wet, for instance.