Bottom line is don't touch any of them with a barge pole.
I actually sat through about an hour of presentation by Club Class in Tenerife in the full knowledge of who and what they are. I was interested to see their techniques. One neat trick they have at reception is a prize draw based on the numbers on your credit card. They weren't happy when I refused to play and actually told them that nobody sees my CC unless I'm buying something. Watch out for that one as it is very easy to fall for!
I was actually quite pleased with myself as I tied the guy in knots over his 'cheap' flights and accommodation world wide. I asked him there and then to price up a trip for me to match or better what I had already booked. The reality was that he couldn't get anywhere near the price I had paid through a conventional travel company. They couldn't get rid of me fast enough after that. Bad for business I guess
