There is no ceiling on the purchase, it frees your hands. Plus, the bets don't stand still if everything is stable and of high quality. They provide detailed statistics on players (LTV, deposits), which is critical for optimizing bundles. 

In the beginning there were problems, as I got just at the moment with long payments. I was not familiar with this vertical. Respect to Offerrum for showing themselves as an affiliate that does not leave their webmasters in trouble, and it is certainly nice. I was afraid in winter that everything was already dead