FSP (OEM manufacturer) makes the EVGA SuperNova Gold series among others, so they are more than capable of making a Tier1 PSU. They are also capable of making garbage. Corsair is no different, except they buy their psu's from someone else (mostly ChannelWell and Seasonic).
That said, its going to be up to the FSP hexa itself if its good or bad, I have no knowledge of them. The Corsair VS v2 as released in India, however, is about on the same footing as the CX, the original VS was cheaper, and worse.