The Fire Stick does buffer better than Chrome Cast. The voice search function only works for the Prime Video library, it does not search (yet?) across all your other apps like Netflix which would be very, very nice if it did.
I got it on a flash sale for which I waited about 7 months. Without a discount I would not have bought it. Chromecast was doing just fine. This is slightly better because of the buffering. Voice Search is cute. Lots of Prime Video does not have English subtitles (Netflix almost always does).
I'm supposed to be able to chromecast to this Fire Stick from my Chromecast app on my desktop, but it does not work. Come'n guys! Talk with each other, will ya?..