1) No, we actually have found our particular China inks to be better than the USA made.
2) Yes, there is a wide range of quality coming from China. Even suppliers will have a good, better, best line of inks
3)No, all aren't the same. We see a wide variation in quality. And the quality can change. We loved a film and then ordered 180,000 sheets of it, the large order was not of the same quality as the sample and we had to sell them off at a huge loss.