Bought this because I'm at an age where high blood pressure has caused real problems for people I know so I thought "why not?" I can honestly say it does exactly what it purports to do : allows a home user to get a quick, accurate reading of blood pressure and heart rate. The digital display is sharp and legible. My family doctor asked me to bring it in so he could check it against his readings and they were identical so I'm definitely happy with my purchase.