Purchased an S50 crank, he got back to me quickly and it shipped from Canada to California quickly. The crank was packed extremely well. When I opened it up and inspected the crank it was in even better condition than described. When I initially contacted him I was super flaky because I was super busy and he just took it in stride. The day after I sent payment he sent me a picture of the packed crank with a shipping label. I would not hesitate to purchase more parts from Mat.