It depends on which genotype you are. hcv-1 is about 60-70% hcv-2 or3 is over 90% cure rate. Don't quote me, I said that from a memory guess.
They say..adding this med to the interferon/ribavirin therapy, has a 75% viral cure rate on newly treated patients, and also instead of 48weeks they were able to only take treatments for 24 weeks, this is on the WebMD website. I'm very interested in this also, I supposed to start treatment in Aug this year.