For the less good:
-No Scientific information on plants. We are told that this plant is good for such a problem but it does not tell us whether this is because of the content of a given substance from the plant ...
-For Each plant, the author tells us personal stories about various people she has helped with plants. And there is a real festival teas came to the end of cancers of all kinds, made the hearing, has revived a paralyzed limb ... I find it a bit too much.
-The Pain In which plants are good are not always precise and are a little repetitive from one plant to another (sometimes too encompassing because I guess).
Still it is an interesting read, but be separate things and remember that this is not a recent book and the author had no specific training. One finds information to keep. The recipe for dandelion syrup is top for example!