Keep your money. Out of five pens one writes well one is just okay two are inconsistent and one is outright terrible/defective. They appear to be refillable though so they aren’t entirely bad for the environment but I’m not going to take any chances that the refills will be as bad as the originals.
These pens write as well as the Inkjoy gel pens from Papermate. Smooth lines no smears or smudges vibrant ink. The lime green and orange ink actually show up darker and easier to read than I thought they would. The blue comes off a bit teal but overall I'm impressed with the quality of the pens and the ink. A fun way to add color to your writing!