Ubiquitous!
Income Access is by far the platform I have used the most across various affiliate roles and it does what it does very well. Lot of great features (simple API report set up, commission structures, report filters) One quibble I have is with some of the default report settings. When I want to take a quick look at last month's report by date I'd really like to see all the days of the month, not just the first 10! And when I change it to show more than 10 rows it would be great to be able to see all of them on screen at the same time!
Simple and effective
When working as an affiliate I was always happy when an operator gave me a login to MyAffiliates. It's so easy to ramp up multiple campaigns very quickly and the taxonomy structure makes it simple to organise them in a meaningful way.