I purchased this ink because I wanted an affordable "brighter" blue ink. I returned to school and am enrolled in counseling classes where handwritten note taking is essential. So I needed an ink that could write well on cheap Mead comp books and would flow fast enough to keep up with speedy lectures. This ink exceeds my expectations!
I primary use a Lamy Al-star with a fine nib. It flows very well and writing is buttery smooth. Even on cheap Mead comp books, the ink dries quickly and best of all.. does not bleed through! I use both sides of the paper and have never had a problem. It has never clogged my pen but I flush it every 3rd or 4th fill with distilled water as part of my regular maintenance. I also use a very fine Pilot Kakuno as a backup and diagramming pen. This ink also works just as well in that tight nib and makes it a joy to write with.
I highly recommend this ink for anyone that wants an affordable beautifully performing ink. I went with Serenity Blue because I did want something that was a little different but still had a good contrast for reading and writing in dim lights. It is a bit brighter than the standard blue which makes it unique yet still comes across as professional and worthy of attention.
WATERMAN Fountain Pen Converter, Standard (56010W). Simple plunger-driven ink container refills easily to use liquid ink neatly and conveniently with your fountain pen. Liquid ink is smooth-flowing, leaves a solid, confident line, and adds to the sophisticated experience of fountain pen use. This converter fits all WATERMAN fountain pens sold in the U.S. Using a refillable converter rather than disposable ink cartridges saves money and reduces waste.