Well above and beyond the call of duty!
Well, first of all, the chair I bought - the C300 Pro V2, is incredibly well made. Literally worth hundreds more. As to the service, well, I contacted them with a problem - which turned out to be my problem! They were gracious and very patient with me (it turned out to be two problems - both my fault!). They solved these problems with kindness and generosity. Some of the best customer service I've ever encountered.