AbleCommerce Shopping Cart Software

We started to work on AC's integrated affiliate system, but very quickly found it to be, how can we say, lacking. There appears to be nowhere for the affiliates to log in to check their progress, and even the signup form needs some work as they are not even taken to a page that gives them the information that they need to set up the links.

So, we looked at some third-party software. Has anyone worked with iDevAffliate? If so, how difficult was it to integrate it with AC? The software looks nice, and has good reviews, but it does not appear to have direct integration with AC.