In the land of the blind, the one-eyed man is king
The Italian Athenaze remains the king in the market of ancient Greek textbooks but the market is very limited. In addition to the stories in the English edition, there are extra stories with art to make everything more comprehensible, thus making it worthwhile even if you have already read the English version. With this being said I hope that Athenaze is soon dethroned as it's over 20 years already.