Anyone ever work with Commission Junction or Linkshare (or others) as an advertiser? I'm looking to set up an affiliate program for my marketplace app. We have the technical skill to implement an affiliate program ourselves, but I'm curious about peoples' experiences with some of the larger organizations.
Specifically, how easy are they to interface with? Is it smooth and easy (ie. REST APIs, RSS/Atom feeds, etc.) or clunky and crappy (FTP'ing files, proprietary formats).
Also, on the publisher side, which do you prefer to work with, and why?
Update: I heard back from CJ and they want $9k down. I'll cross them off my list...