I have been working with the Author 24 offer for more than six months, there are no complaints. 
I have my own website, on which banners and a chatbot have been hung, manager Sasha regularly clarifies how I am doing, advises what can be changed and added. Recently, the affiliate has made a video widget, I also think to test it, but I have not yet reached this point. As we wrote above, I have not had any problems with payments yet. Let's see what happens next, of course I want to earn even more. I have not tested other offers.