Amazon Credit Card: Thumbs up?

$20 on joe vs dan · 2019-03-08T19:21:48.000Z

So I saw the banner for 5% return using the Amazon Credit Card I want to preface this by saying my household has had just 2 cards: a version of Visa and MC for the last 10 years and never paid a dime of interest,. but 5% back on all Amazon purchases is very attractive. For those that have this card; Are there any hidden caveats I should consider?