I have the current kindle fire HD 7 inch, there's no way I'll ever buy another Amazon tablet, the interface is fucking terrible. I've rooted it and added the play store but it is still a pain in the ass to use and nothing ever works quite right.
The Good:
Amazon prime videos
Amazon Freetime kids app(videos)
The Bad:
Almost every app requires a kindle specific version
No play store
No customization
Limited storage
No SD card
Terrible interface
Fucking Ads everywhere
Inex-fucking-scusable:
On the kindle freetime app the kids books are locked into a 2 page landscape view with tiny little text. While I can read the text(barely) neither my daughter nor my mother are able to, "this is controlled by the publisher and there is no way to adjust it" great, so if you're young enough to read kids books you can't, and if your're old enough to read them to your grandchildren, well you can't do that either? How about a zoom feature, it's 2013 surely a zoom feature is possible right? "this is controlled by the publisher and there is no way to adjust it"...Fuck you Amazon...
Basically it plays video...Anything else has been neutered so badly that it's useless.