Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Who is that narrator?

The narrator sounds like Paul Reubens... aka Pee-Wee Herman!! (In his 'normal' voice, not his 'goofy' voice). Kind of annoying to listen to. Other than that, he does a good job. (Yes, I know it is Jesse Bernstein narrating, and not Paul Reubens).