I purchased a C310 for an online course that I started. The first 4 months were fine, then the picture quality fell off a cliff. The customer support was torturous, but I perservered and answered all their questions. Then I heard nothing. Eventualy a friend suggest that I posted on their facebook page. My post was removed immediately, but it did seem to have some good effect. Eventualy, about 6 weeks after I first raised the issue I received a replacement. My only other advice would be not to buy direct from their website but go through a well known third party.
