I'm not sure why he hasn't replied - I wondered if he's encountered some head-winds, given I read somewhere (probably in this thread) that his site has been down for a while, so if that's the case, he could well be pre-occupied currently. I believe the 1.95% was AMEX (I can't recall other card rates). I felt fairly comfortable at the prospect of using Ferni's services (albeit I hadn't started), as there's a pretty decent history of discussion about Ferni on here and a number of other AFFers utilise the service. However, I would have done my own due diligence of course and started slowly.
Tbh seem's like he's onto something pretty good. Could really change the game if he went public with it which is what truly baffles me