I did actually and was kind of turned off by a few things.
1) everyone in the DC forum has been talking about all of the bad experiences thus far
2) the fee to transfer points .95c per 1000pts I believe?
3) that it costs 30k miles for a RT ticket, which equates to 30k in spending, if I understand correctly (which I may not, this is what I gather through preliminary research)
I definitely looked into it, and the biggest concern for me is good CS, and good points redemption. So the fact that it's 30k points and no double points makes it a little harder to earn flights, that's at least another 5k in spending, plus the higher annual fee, plus the cost to transfer. Just my thoughts on DC, but if I am incorrect on any of these please point it out because I would prefer a card like this.
Now, since I don't plan on flying AS and am not familiar with them, are they doing well, any chance of going under and me losing all my points?