Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cautions:

1. This is not the complete opera. The director has omitted the Prologue, which is need to introduce the opera in the context of Monteverdi's era.2. Characters dress in 20th century costume (so, a modernized performance).3. The performance practices are not historically accurate.But, if you are interested in a modern interpretation of one of the more significant early operas, you may enjoy this DVD.