Bests & Worsts Reviews from Amazon

My children love it!!! Just one concern about the downloading process. As soon as I installed the "Amazon Underground App", I tried to download the purchased game, but the progress bar didn't show any progress after more than 30 minutes waiting. Then I tried again the day after and it was the same. Finally, I uninstalled the App and then installed it. When I tried to download the game, this process ran smoothly.