I have the Barclay cash forward because they gave me mail promotion for $200 if I spent $500.
None of their cards are competitive with Chase/Amex IMO. That Cash Forward is only 1.5% cash back, while CITI offers 2% on their double cash. I can't speak for the value of the travel card mentioned by the previous poster.
One thing I can say is they have the best transfer rates I've ever seen!!! Since getting the card they frequently send me balance transfers checks for 0% for X months with a 1% fee. None of my other cards ever beat a 2% fee and usually they are 3%+ for a balance transfer fee.
It's better than a bank loan if you're looking to pay something off in 12-18 months.