I'm trying to make up my mind on this ink. On the one hand, it's a nice green color, a little different from other greens that I have. It's waterproof, bulletproof ink, so it's not going anywhere. And it dries really fast. On the other hand, there's the feathering. It soaks into the paper so fast it spreads and feathers and bleeds through to the other side. Now I'm pretty much always using a fine nib in my pens. If you are a flex/stub/double broad type pen user, this is probably not your ink. It managed to stay where I put it with my fine nib, but there was some spreading of the ink as it went down on the paper. Just means it writes a broader line than you intend. An extra fine nib or maybe some higher end clairfontaine or rhodia paper would probably tame this bad gator a little. Hmmm...