Instruct: Classify Amazon reviews into positive or negative sentiment
Query: OK - but not great

OK. Frankly, I'm dissappointed. These people are supposed to be classically trained? Shame on their teachers. The amount of slurping that goes on is just plain bad! Don't they know how to hit a note on the note?? And, why are they out of tune? Every once in a while there's a sour note. They also don't blend well. And, I can't understand the Italian at all.Now, if you're a newcomer to Opera, do yourself a big favor and pass over the glitz of "rock-and-roll" opera and buy yourself a CD by Rene Fleming.