They are Canadian based company and they had been a pleasure to work with. The people whom I worked with were very responsive. I have recently partnered up with them. I am guessing you are talking about Adx access via DFP. It's best if you already have a working knowledge and setup of DFP, if you do it's really easy to implement.

It should be noted that since my partnership with them is new, I have not received payment yet based on the payment terms and condition.

Thank you, @frankleeceo - I appreciate your input. Yes, I just filled in the registration form from the invite. I don't know DFP but I suppose I need to learn. I better get a "for dummies" book or something...

I've worked DM for a few years and they pay on time, every month. Very reliable. Their support was stellar at the beginning but my account has changed hands a few times over the years and over the past several months, the response has getting worse. Still recommend them.

Thank you, @child please - I appreciate the input.