I disagree. I used a Waterman Expert for a long time. It conked out when someone I loaned it to dropped it. I switched to a Noodlers Ahab (which has a flexible nib) so you can do a little bit of flourishing for headings etc. I've used it for a long time and still do. Recently, I switched to a broad tipped Lamy Safari (which was a birthday gift).

My main problem is that most papers can't really handle the inkflow from fountain pens anymore and since the place I come from is somewhat humid, the papers quickly start to bleed ink. So, my more common instrument is a Pentel graphgear mechanical pencil.

I do calligraphy as a hobby so I have separate arsenal of dip pens and nibs but those are not for daily use.