The Amazon HD experience is quite different depending on your platform. My primary platform is the Apple iphone. On that, it generally works OK but not great. Downloads are fairly finicky. The biggest issue is that every time that app starts up there is a big lag until the first song plays. On the Fire 8 platform, the app is terrible when it comes to downloads. It hangs all the time with network errors even though the wifi is just fine. On the PC, everything is pretty straightforward. I am not trying for critical listening on that unit, but everything sounds just fine. The craziest thing is that there is no way to contact their developers as far as I know. They should be getting this feedback.