4 stars: Will not work on my Hisense Android TV (Australia) but works perfectly using my Nvidia Shield TV. 4K, surround sound all OK.
4 stars: Great content and video quality, we subscribe to HBO and Showtime thru Amazon because the stream quality is so much better than their native apps. Kind of a clunky interface and nothing like other apps on Android TV as some others have said, I also don't like how if a screensaver comes on when your show is paused it kicks you completely out of the app and back to the home screen. No other app does that to my knowledge.
5 stars: I bought Nvidia Shield TV, and a major deciding factor is it appears to be the only Android TV OS set top box that has an official Amazon Prime Video app. This works flawlessly on my Shield. I was frustrated side-loading Prime on to other Android TV devices, and having audio drop outs, sync and other issues, but it is perfect on my Shield. Thank you so much Amazon for including this as a system app on Nvidia Shield TV !
4 stars: This app works well enough not as well as Netflix but its ok with room for improvement. I have it on my Nvidia Shield and on two of my Xiaomi Mi boxes I had to side load it on the Mi boxes it works on them I don't know why Google Play has them listed as incompatible.
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