While most puzzle apps start out easy and take a while before they start actually posing any kind of challenge this one is pretty challenging from the outset.
As for the app settings, most of them let you keep the sound effects while turning off the music. Not so here - it's all or nothing. You choose to lose the music you also lose the sound-effects of the box rolling around.
The app would be great except for, as others have noted, the excessive ads. They really are frequent, omnipresent long and loud. My standard response is to quit any app that throws an ad like this at me anyway, so I've closed this app much more than I've played it.
If you love looking at ads this is the game for you.