Wow, this forum isn't very active, but yes, we bought our first Amazon Fire TV around the time this thread started (April 2014) or so and we've loved it since day one. It blows away any other streaming device we've had before or since. The Fire TV's remote is the most fantastic remote of any TV-watching device I've ever used, it's just so intuitive. It's the only remote on which I don't mind pecking my login credentials off an onscreen keyboard, because the remote is so responsive that you can do it very quickly. The interface is nice and clean (although granted, Amazon-centric, but once you learn where stuff is, not bad) and the speed is blazing fast, no waiting for apps or shows to load, ever. I can't wait to see how the new Fire TV, with a faster processor and more RAM, does (I hope to get it today).
We've actually tried a Roku 4 for the last 2 weeks, just to have a variety of devices and thus more options, but we're returning it today and getting another Fire TV. Compared to the Fire TV, the Roku and it's remote control are clunky and Roku's phone-based tech support is an exercise in frustration, talking to people who speak English, but with thick accents (it took one tech 15 minutes to take down my name, email address and phone number -- I am NOT exaggerating!) who read pre-defined steps off a list. Amazon's help is US-based and are knowledgeable, they bent over backwards to help me solve a streaming issue with Hulu.