From the Winnerpartner website:
Winnerpartner is the best affiliation program for casinos online. We are keen to help you optimizing your profit. Our professional team will enhance your conversion and satisfy the players coming from your traffic. We take responsability for the marketing, the creative tools and the payments. Here are our key strenghts: Quick payments With Winnerpartner, you are paid fast with the payment method that suits you. Indeed, we propose several payment options and we send the payment at least once a month. We propose revenue sharing deals, CPA and hybrid deals. It is very important for us to satisfy the affiliates of our affiliation program so we guarantee you payments on time and win-win deals.