Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent little machine

Very easy to use and very accurate also it works quickly. I brought it to a few of my Dr visits to compare the pressure readings and it was pretty much right on. My Doctor was impressed with it as well. Doesn't take up a lot of space and can be used anywhere at anytime. It isn't very loud either. Many times I'll use it while my wife is sleeping and she never flinches.