Bests & Worsts Reviews from Amazon

Edit - several colors now barely last a few pages before drying up (others are longer so I know it's a quality control issue). Doubt there are any alternatives but a) the colors aren't as pretty as the barrels (ie the green is dark pine green ink) b) barely last - I wrote 6 pages maybe with the blue and it's now empty and c) they never write when you first put them down on a Rocketbook page - have to scribble to get them going, you can't write fast, or draw lines or they skip. Just a miserable writing experience. Can't understand why everyone likes these. Slightly better on paper and they do seem to erase. Mostly just angry at the short ink use.