I've been using Kontera In-text for several years.
A couple months ago they started promoting their new In Image ads (maybe not the exact name). I asked a few questions, still waiting for an answer, 2 MONTHS later.
I'm thinking about just taking them off the site entirely.
Other intext type networks have contacted me over the years with their equally goofy promises of "up to" some apparently unrealistic CPM, but when pressed to put that number in the contract.....
well no they couldn't do that.