You can get the full original soundtrack from the artists’s (Toy Tree) own Bandcamp webpage for the same price ($7), including the OST in full quality FLAC format and others, plus unlimited bandcamp streaming of that song (for those who like that). In that light $6.99 for the mere MP3 set is not a very tempting deal. ★★☆☆☆ Value for money ★★★★★ Soundtrack quality
