Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Wrist Blood Pressure Monitor

I have one of these wrist blood pressure monitors that was purchased a few years ago. I do not get the same readings as from a sphygmomanometer but it is close enough to warn of a problem. A friend with Parkinson's is on medications that have remarkable effects on his blood pressure and his caretaker had no reliable instrument to monitor those changes. I bought this as a gift for his caretaker the caretaker is absolutley thrilled with it finding it easy to use, portable and accurate enough for the purpose.