What is the main purpose of an evaluative essay about a piece of literature?

Evaluative witting or evaluative essays are made with the purpose of lay out evidence justifying the writer's opinion about that piece of literature, like a review, is like judging something according to certain criteria considering its upsides and downsides in order to determine the overall value of it.

Explanation:

1.the hosts on two opposing mountains stood,  

2.thick as the foliage of the waving wood;  

3.between them an extensive valley lay,  

4.o'er which the gleaming armour pour'd the day,  

5.when from the camp of the philistine foes,

6. dreadful to view, a mighty warrior rose; in the dire deeds of bleeding battle skill'd,

the answer would be yes because the basket is full.