Ahh yes, I am almost ashamed to admit I paid a $97 "membership fee."
ESB was my second book, right behind betmaker. I was one of the fortunate ones, being that I was always paid (cigar included). In fact, my first-ever offshore payout came from ESB.
Never had a problem with them until once, the day after the super bowl, I called up to request a payout. Was told that because of the high volume of requests, I should call back on Wed. I did, and I did receive my $$ -- however, the incident luckily scared me away, and it was the last time I ever called the place.