Terrible offline mode. No integration with Bluetooth headset's controls. - When watching downloaded content, connected to mobile network and wifi, and then loosing wifi connection I see message that there is no connection and playback stops. In the settings I have playback over wifi only - when I start download over wifi and then loose connection to it the download continues over mobile network even though 'download over wifi only' is on. It drained all of my traffic, thank you!