Look at my sig
I use verotel for one year now. The fee is 14% (which I found to be quite steep) however since we are dealing with adult contents it sounds fair. No initial set up / visa fees like ccbill. Great to start out with.
I've tried Zombaio but I heard about their late payments and I kinda got scared. Verotel isn't perfect either, they will send your payment on time unless there is a holiday which will delay your cash flow to your bank.
This month I made 939.83 in sales so far