The deal I signed up with was 6 months free. I used their website to view my statement before it was ever sent, and I also had the $85 fee billed. One call to complain, they said they'd pass it on to marketing for verification, and 2 days later, before the first bill had been mailed, the charge was reversed.

So my advice, monitor your bill online.

I use the card in places offering double miles, and my Citi AA card elsewhere. I expect I'll cancel once the 6 months is up.