I'd buy a Corsair PSU again in a heartbeat, never had an issue with their RMA. They sent me a brand new 600T when I complained about the panel gap on mine and let me keep the old one.
I returned a set of RAM too as a stick was faulty and never had any issues.
Haha I do love Corsair myself mate, While my 1200W Superflower was away I bought a 650w Corsair gold, It ran my system and never complained once. Great little psu for a back up me thinks.