We have Amazon Fire. But we don't use it while traveling in the trailer because it uses too many gigabytes of our wifi plan. We've found very few places where we could actually use the campground wifi and the Amazon Fire.
BUT if you're an Amazon Prime member and have a wifi connection, there are a ton of movies, documentaries and other stuff to watch for no additional charge. We got Fire originally because we're Prime members and could watch movies for no additional charge. Good stuff. But that's at home where we have unlimited wifi. It wasn't so good on the road with our Verizon wifi hotspot. :( too bad.