I looked on the website to see if they had any info on how to use the pen and then I started reading the reviews and was worried that I made a bad choice. Decided to try it out and it works great. I think the bad reviews were from people not using the pen correctly. It says to press on a hard surface (not your nail). So I used a scrap piece of paper and pressed on the end once and waited, then pressed down again and I saw the polish start to flow to the tip. once it filled the tip I drew a line on the paper before I put it on my nail. It makes perfect lines, no blobs at all. I think the key here is to only press on the end once, maybe twice to get the color flowing. I did not have to keep pressing the tip down. I used a light touch as well when I applied the pen to my nail. Works great!