We're going to be forming a partnership with them for a compliance project we're working on to launch as soon as we have enough networks and advertisers to sign on for it.
Their ratios are pretty solid now, but the offers are being WHORED out on every network it seems. I mean, good for them since they aren't a network and all, but it can really hurt the brand/service appeal on a longterm scale.
You can't base ratios in a general sense anymore. It depends on the creative/LP, the target niche, and most of all the traffic source(s). If you're using multiple traffic sources, try and seperate them so that you can see which one is working best, and the ones that aren't hitting some good ratios, try and adjust the creative/LP to possibly cater to what they are specifically looking for.
This is not new advice, but maybe just something you need to constantly keep in mind to do, regardless of how lazy you may be. Otherwise, you're just losing revenue and can blame no one or nothing, but yourself.