I have signed up with media traffic, and their user interface is kind of ok, with these flash on the way though. However, I have to admit, they customer service are slow as hell! I signed up and get an email from one of the guy saying to contact him. I sendhim two emails, but never got back until 2 weeks later! Finally he caled me and opened my account. Then I added some campaign, but was rejected after one day. Send them email twice so far without any response. Call the sustomer support, and no one answer. I guess they must be having too many customer and are too busy to to accept new ones, or they are just plain suck in service. Anyone use them and have any experience with them?