The Amazon app freezes with white circle forever every once in while. Usually after long pause or switching to another episode within a series. It also has major playback issues with CBS ALL ACCESS.
Sound is surround sound without the front channels. Only hear music no dialogue.
Only fix for both is going into so many other apps LG finally closes Amazon app. Power cycle and simply switching to Netflix doesn't work.
I don't understand why the Netflix app is so awesome and all other apps have issues. The UI, playback etc suck on other apps. Small but meaningful is the ffw and rewind. In Netflix simply arrow left or right simple with nice preview. All other apps have a clunky stupid button you have to arrow to select then arrow back to play. Try to jump back 10sec or so in Hulu, Amazon, sling etc... It's a pain in the ass.