I downloaded January's CBJN and it was dead on for Atlantic City Casinos. I was there about 3 weeks ago, and the rules I encountered at each casino matched EXACTLY with what was reported in CBJN.
CBJN is the ony Blackjack news letter I have ever used; it really seems to be thorough, and up to date, at least for AC and Vegas. It's a big help weeding through bad odds and gives info on individual Casino conditions (i. e. lots of heat, photo recognition used, uses computer evaluation software, etc.)
I never tryed any other BJ conditions newsletter, but I do reccommend CBJN, as I have found it much easier on my feet!