I got a box of 100 from Zellwin and they were awful. I checked out about 30 of them, and 1/2 of them were either scuffed or had double printing errors (it would print the same thing, only a little lighter, right next to the image/text). E-mailed the company and they wanted pictures to prove it. No offers to correct it or make it right, only to send me a shipping label when I told them I wanted to return them. I won't be ordering from them again.
Update...
They finally gave me a refund and told me to destroy the cartons. Still nothing about offering to replace them.
I looked through all 100 cartons. About 1/2 of them were scuffed. 28 of them had obvious double printing errors. Many of them had the printing on the side crooked.
I could understand a few bad cartons. It happens. But 28% of them having blurry printing? I would never do business with this company again.