What are people's views on Google CPA campaign? I have one campaign set up on this format but have found the results to be sketchy. Sometimes I spend over my CPA bid for a conversion and also end up spending money even when I don't receive any conversions at all. Is this normal??? I'm not sure whether to revert back to the standard Google CPC campaign or whether there are any ways of optimizing this campaign? Thanks!
personally, I have not used it but I would rather say, stick with cpc at the beginning as you can have greater control of your campaigns and you can get loads of help & advice from this forum.