Ordered 4 of these packs (20 in total) for a small event to test the quality and limitations. Ordered on Sept 30th, received on October 24th. They were meant for a local event on the 19th, but sadly didn't arrive in time due to a delay. The quality of the final product made up for it somewhat since the delay was due to a manufacturing error. I would rather get a nice product late than get a low quality one early.
Wooacry kept me updated through every step and reached out frequently via email to provide those updates. If there were any complications, I was immediately made aware. There was no sitting around and guessing what my items would look like or when they would arrive.
Paper quality is very high and the colors came out absolutely perfect. The holographic shine does make the print appear slightly lighter simply due to how shiny it is. If you are placing an order, keep in mind that even the darkest blacks may appear gray in most lighting, similar to any product with an extra glossy finish. I was already aware that was likely to occur, so I don't see this as a negative thing, though other customers may.
The level of rainbow shine on these is absolutely perfect. I will absolutely be ordering again in the future.