Sounds really great and I apllied for one. What worries me is when you look into the fine print that they ask for at least 7.50$ for balance transfers or 1% of the amount. Is that not ruining the whole advantage of this card? I got to do some more research but it is not so easy to find answers.
Update: I had a great talk on the phone with MBNA, the bank which issues the credit card, and they explained to me you pay no fee if you let them get the due amount directly from your bank account. The 1% or at least 7.50$ is only due when it is paid by another credit card. So for me everything is fine and as a Prime customer I enjoy the extra perks.