I like that they have many different affiliate programs, as well as several ways in which you can promote them (including social media).
The interface could use some work -- it's not very intuitive at times-- but overall this program has been great! They make money back fairly quickly with good affiliates/programs included within. Nothing really; everything seems pretty standard from an agency standpoint so far- no complaints there either. Just keep working hard and earning your commissions!! There isn't much of anything specific about Prism that we dislike or haven’t seen others mention already, however - if someone was going into joining just having heard something negative before then maybe do yourself harm by investigating more thoroughly first? It's worth checking out though and considering what exactly people say won't matter once you're actually using it and seeing how things go.