Bests & Worsts Reviews from Amazon

Liked em at first but two big issues with them. 1) The tip is delicate and the inside of the cap is designed in such a way that if you don't re-cap the pen carefully each time, you risk splitting the felt tip in two -- resulting in double lines when you write. I ruined 2 of them this way -- it's easy to do because you end up recapping them a lot since they are like markers and you don't want them to dry out by leaving the cap off. 2) The writing on certain materials fades. I wrote something on a wall calendar about 2 weeks ago with the pink pen and just today I walked by it and it was like the writing disappeared. It just faded and you could not tell what had been written. It doesn't do this with absorbent paper (like a regular notebook) as far as I can tell, but on slightly glossy paperstock like what a wall calendar is made of, the writing will only last 2 weeks. Furthermore, the company contacted me and said they would give me a full refund if I took down this negative review. I refuse to contribute to the growing unreliability of Amazon reviews. They're really not terrible pens, just beware of these above issues. Edit Feb 2019: It seems to not just be glossy paper that this writing fades on, but also regular paper. Example pic attached (3rd pic). The common denominator seems to be exposure to light, so it seems this ink is not photostable.