I have never used an affiliate system before, but am about to set one up for my website. My goal is to have the SEO boost of links on my affiliate's websites as well as increased traffic and sales from others helping me sell my subscriptions.

Can anyone offer their advice on which to choose: iDevAf or PoftAfPro?

From your experience, what are the pro and cons of each? Which one do you recommend and why?

Hi,

this is Martin from Quality Unit support team. I would recommend using our Post Affiliate Pro. To see why, takee a look e.g. at this revision:
affilla.com/recommended-marketing-tools.html?view=item&item_id=18

Additionally, I can tell you that we are online 24/7 (chat support) or you can also call with us Monday to Friday from 7 AM to 10 PM GMT+1 (Europe). We are ready to help you and you can have your Post Affiliate Pro from $19 per month (hosted license).