Agree with everything that is said above. To accurately judge whether the network is good or bad, you need to supply enough traffic first. Try it for an extended period, at least a week and get upto at least 5000 clicks. Then if the conversion is still low, switch to another network and do the same. Also account for any outside fluctuations, like seasonality, holidays and other influences. If nothing works, reconsider your content or/and promotional strategy. Then try again. And don't expect that users will just jump in at your offers without you offering them something valuable for their time and money. Good Luck!