I didn't have very high expectations for the Sakura Gelly Roll, but I wanted to try it out since it is so popular. In the end, it's just an average pen for me. My main gripe is that the black isn't black enough, even showing up a bit brown on some types of paper. But it seems that these pens are more popular for their wide array of colors rather than just the black model that I tried out. They are very cost effective though, so you may want to pick one up and test it out for yourself.