+ Shipped fast. While buying, was given 10 days, but arrived in 3-4 days.+ They are good quality, sealed from all sides and stick well.+ Excellent value for money- twice the quantity for much less compared to other products.- Slightly on the smaller side in width compared to other similar products. I haven't measured them with tape though. They are good for me for shipping books, but if you have something that needs 8.5" exact, it may be a challenge.- Could have used some thicker padding inside. The padding is ok, but the way these shipments get tossed around in transit, I am not sure if they can offer too much protection. They are comparable with other padded mailers I have used though, so they aren't worse than competitive products.Edit: I've ordered and shipped products in almost a thousand of these envelopes. They are excellent! Easy to pack in and compact enough. Buy them folks, you won't find a better deal.