As a game this is bad. Look at the trailer. That's it, there's nothing else thats not in the first ten seconds of the trailer.

Its pretty with good visuals and music with decent flying mechanics. But its a large empty world where you can see everything the game has to offer in ten minutes.

I feel like you can go for the whole "zen game play" and still include minor objectives like flying towards a goal or collecting items. Something to idle my time while I enjoy the music and still have a meaningful experience. A good example of this is the Grow series (Grow Up and Grow Home) where all you really do is grow plants and scan or collect items. Or even a short hike, which similarly features flying mechanics, item collection, and minor characters. Both of those games are calming and enjoyable.

So this has potential, its a proof of concept for a game, but its not a game.

If you don't treat it as a game its cool. Do a breathing exercise while you fly around for a few minutes and then close out of it.

I wouldn't suggest paying more than $1-2 for this game.