Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent piece of equipment.

I record (and sometimes perform) ambient/electronic music. Electric guitar, no synthesizers. I was searching for a reverb unit, but most effects boxes for reverb are limited and expensive. For the price, this thing is amazing. Many different reverb and delay settings as well as built in modulation effects. Easy to use, easy to program and durable.