Okay but not as high quality as I expected

I love Sticker Mule's products and have tried about all of them, so I was curious to try the polymailers finally. Somewhat disappointed in the overall quality -- the second mailer I used easily ripped at the top when I was getting the package ready; the printed, designed side has printer lines through parts and isn't very crisp looking; and perhaps worst of all, I used sharpies to write the addresses on the blank side but any marker seems easy to scratch off! I brushed my package against a tote bag and the marker was coming off -- not smeared, but very very easily scratched off. I guess a label would be necessary but at that point I'm spending too much on packaging. Bummed these don't seem like a solution for me.