Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great product, especially for the price.

Running my 4th marathon this fall and picked up this GPS watch to track my mileage. I have used a few mileage tracking devices (Nike iPod +, iMapMyRun on iPhone) in the past that have been decent, but the Garmin Forerunner 305 is leaps and bounds better. Highly recommend purchasing this.