I'm writing this with the new.kindle fire hdx.
I've seen reviews praising it. It is very light. It's even lighter than the iPad Air. But I'm not liking it.
First, the keyboard hi is terrible. As I type this, there is an additional row of commands right under the keyboard (which you can hide but they shouldn't be there in the first.place, it's.just bad UI.
The auto correct.is.even.more.obnoxious than ios. For.example.if I type ios it wants to,change it to it's. It wants.to change hdx to hex. And only the manual selection of the word.I typed from its suggestions will fix it.
The keyboard layout is similarly bad. The spacebar is skinny with the period button right next.to the spacebar. The delete key is also down next.to the spacebar. Needless to say, typing is.not.fun.
The screen itself is pretty but like all android based tablets there.is, for.me, a noticeable delay between when I touch the screen and it reacting. It is probably.around u nd a 100's delay but it's.noticeable.
Where it is nice is, of course, as a kindle. I am firmly entrenched in Amazon's ecosystem. So it.does work well for reading. I prefer my Kindle Paperwhite for most reading but anything with illustrations works.better here.
Bottom line, as a tablet, very mediocre. As a Amazon ecosystem consumption device, quite.nice.