Adsupply is easy to use. You can set up a campaign as easy as 1,2,3. You dont need a lot of paperwork to start and you can set up your account fairly easily.
The customer service is very good. My AM was very good on helping me with product questions.
The CPCs I was able to achieve on the platform were very cheap which helped to achieve a decent CPA for my advertiser.
The inventory of the platform is not very "brand safe". You will get a lot of porn traffic probably.
Also, the inventory is limited to specific formats. You will not get premium placements on the platform. Most probably you will be relegated to second class inventory.
Adsupply works on a niche market. I wouldnt reccomend it for a brand campaign but if you are looking performance, Adsupply will definitely deliver results.
With Addsupply I am able to deliver the results I need for my client as well as have the flexibility to optimize real time. Also, I am able to buy CPC meaning I do not have to arbitrage between bidding models.