I've had good experience with Topeak customer service in the past, but not my most recent case. My Joe Blow pump wore out and they charged me $10 for a rebuild kit (after sending me one for free with a previous pump). When the kit arrived, they had sent me the wrong one, even though I supplied them with the serial number for my pump. I contacted them again and got no response. So I bought a new pump from someone else and won't be buying any more JB pumps.