I've been using the Blue from American Express credit card since 2005, and so far it's been one of my favorite credit cards. My experience is a little short since I've only had two other credit cards a Capital One and a Chase.
Reasons Why I like Blue from American Express:
I've never had any problems with there customer service.
It's easy to setup online account payments and easy to log into your account and pay your bills
I love seeing my cash rebate accumulate every month on my statement
As long as I pay off my bill in full I get a 1% rebate off of every purchase.
The APR is the lowest I've ever gotten on a credit card and it has a large credit limit too.
Those are my thoughts on the Blue from American Express I hope you found this review helpful when you are choosing which credit card you want.