The ease of use, quality control in all aspects from account management through bidding process execution is great! It's not perfect yet but it already works well enough for my needs so far (it was very easy even without any previous experience). I have no complaints at this time as everything seems good except maybe some minor issues with their API access - which however has nothing directly related or negative about ibilling itself.- Make sure you know what kind fo product/marketing campaign are best suited by using them first- You can always contact us if needed;-) We had an agreement that they should work together closely since there were problems between our platforms when we used different vendors before:-) So now things seem better than ever :) Bidding campaigns creation takes more efforts compared other software outthere like AdEgg etc., especially because most bids look similar while creating new ones :)- A lot less features available within bid.