**2017 update**: Great news for Amazon Prime members...5% back on Amazon purchases! Thanks to over 10,000 individuals that marked this review as helpful. Our collective voices may have influenced the nice enhancements that Chase and Amazon are offering now.

Original review...
I've had this card for 14 months and haven't encountered any issues. I'm a die-hard Amazon shopper, so I thought with 3 points for Amazon.com purchases, this is the card for me. Then I learned...

The 3 points only applies to Amazon.com purchases (plus a few other categories on Amazon.com, see below). Because so much of the merchandise on Amazon's site is not from "Amazon.com", but from affiliated and third party sellers, you may find that many of your purchases made on Amazon.com aren't really "Amazon.com" and therefore don't actually qualify for the 3 points. For instance, if you see items sold by Amazon Marketplace (which is common), beware, you'll just receive 1 point per dollar spent. I was so disappointed because the fine print (pasted below) isn't explicit about this, so I feel a little misled.

One plus about this card is that you can redeem the points for statement credits (example: 5,000 points = $50 statement credit), which is a nice option if you don't want gift cards or travel-related rewards.

In case you're interested, here's the fine print:

"You will earn 3 points for each $1 of eligible net purchases made at Amazon.com (including digital downloads, Amazon.com Gift Cards, Amazon Fresh orders and Amazon Prime subscription). Purchases made at Amazon.co.uk, Amazon.de, Amazon.fr, Amazon.co.jp, Amazon.ca, or any other website operated by Amazon.com, its affiliates and subsidiaries are not eligible for 3 points."

Update (October 2013): Chase revised the language on the agreement to reflect the 3 points just as expected, without all those exclusions. Thanks Chase and Amazon!