Corsair is superb. My experiences:
Lost the cap of my Flash Voyager 8GB. Filled up their online form and I got a cap delivered to me from USA to Chandigarh in 2 weeks via FedEx! They must have spent more than the pen drive's worth on shipping the cap
Btw, now that I've lost my pen drive, Il check if they have a form for that too
Second experience is same as others, my VX450 conked off last month. I had bought it in 2011 at peak price around 4.4k, so I was'nt happy with the PSU literally smoking out.
Gave it to Kaizen and got a TX550M a week later; am now a happy corsair customer