This was my first experience traveling with US Airways. We traveled with them on our recent trip to the Dominican Republic with a stopover in Charlotte, NC on each way.
I did find them to be a bit more bare bones than I'm accustomed to. No TVs and no meals (unless purchased through the flight attendants, although they really encourage you to bring your own food). They also charge for checked baggage. I know most domestic flights do nowadays, but it's becoming more and more annoying.
The loading process was not very efficient. This part always seemed to take a lot longer than I'm used to, even when boarding large international flight I have never seen the boarding process this slow. Definitely not one of my favorite airlines I have traveled with thus far.