I agree. Over the last year and a half or so I've bought a complete M8000 groupset, complete R8020 groupset, half an M6000, and M5100, along with other Shimano bits from various sellers. All have been legit parts in perfect condition. No problems of any kind. The couple times I did have issues (not Shimano parts) the Ali complaints department was quick and heavy handed dealing with the seller. On a carbon seat post I bought one of the screws was supposed to be thumb screw but was shipped with a regular Allen bolt, they decided to refund half my money. Good enough for me!