These chairs are engineering marvels!
I bought my Sihoo C300 2 years ago and love it. We had a little problem with the seat mesh recently, contacted Sihoo and they were fantastic and responsive and arranged to replace the seat. It arrived a week later!! Nothing but admiration for this Company, would definitely buy from them again. The engineering in these chairs is amazing! And the service can't be faulted. Do your back a favour and buy one!