There are definitely a few things that worry me about them.
When I promote them heavily, I make no more than $15 or $20 a month. When I drop them as far as possible, I go up to around $200 per month.
All the other programs give me a realistic return on the exposure given to them, but something is not right currently with Referack and their casinos and I do hope they fix it soon.
They casinos they represent are some of the oldest most respectable casinos around. The things that worries me however is that according to Alexa.com their popularity has steadily been slipping in the past 3-4 months.
Taking my wallet into consideration I have dropped them and replaced them with more casinos from my performing casino groups. The results has been that I have had about a 30% growth in revenue in the past two months with no significant increase in the traffic to my sites.
I am keen to hear their opinion on what might be the problem.