Having practiced the ancient Greek (and modern), I find this ideal method to revise or improve without diving in arid and bleak methods; This method will, as always with Assimil, combines business with pleasure, but if it's a real pleasure for modern languages, it is not sure that separate language from us by thousands of years can be learned intuitively.
That said, it is an approach that should be welcomed as the first lessons past, if one has courageously passed the discouragement, the Assimil method is still more pleasant than some other, bushy and rébérabatives.
A therefore considered from a distance.