They convert good (not all their sites) with niche traffic, but for general traffic I tried only the movie sites from both ND and FC and they work ok. I also have an exit console with the FC sites, and I had only 1 celeb sale. I'd recommend you however to use for the general traffic the big cock sites and celeb from FC, besides movies. Also for ND, if you feel conversions are not great, use their popupfree option in a new window so that you don't lose traffic.
