I started to regularly use Rhodia and Clairefontaine products after discovering years ago that the waterbased inks in my (at that time) new favorite writing tool, (a fountain pen) did not play well with the paper in my then favorite notebook. I then started upon a mission to seek out the perfect pen/ink/notebook combination and documented many of my findings along the way on my personal blog Spiritual Evolution of the Bean.
What I would come to discover is that while some papers worked some of the time, (because some manufacturers buy their paper from various sources) Rhodia/Clairefontaine was always consistent in the quality and functionality of their paper because they themselves manufactured it. I could always use their paper without having to worry if my new red/blue/purple/green ink would bleed or feather when I touched nib to page.
And why a fountain pen? Smoother ride, less fatigue – they make writing pleasurable.
Have you tried one yet? Lamy Safari’s are an inexpensive way to start and still one of my favorite FP’s. (I have 6 Safari’s in different colors and varying nib widths.)