Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It was too hard to use!

I was very enthusuastic about this product because of all the bells and whistles that came with it but I ended up having to return it because it was just too difficult for me to use it. I just could not get the cuff on properly for some reason and it would not function until it thought the cuff was on right... therefore I could not use it. It errored too easily. I ended up returning it and buying an Omron HEM-670IT Wrist Blood Pressure Monitor with APS instead and I am very happy with that one.