Our family has 3 Kindle Fires and two Fire phones. We love them.
Never had a problem with any and they do waaay more than we ever need.
I have a first-generation Kindle Fire... well, had, as I gave it to my eldest son and got a regular Kindle because I only used it as a reader anyway, and the basic Kindle is much smaller, lighter, and lasts longer on a charge.
I found the Fire pretty underpowered, but that was just the first-gen model and the newer ones are supposed to be much better.