Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Boiling Water is One of Life's Essential Activities

I first purchased an electric kettle for my aged mother. One day she absent-mindedly left her tea kettle boiling away on the stove (it became part of the stove). Now if she forgets about the kettle, there isn't any danger of the house burning down as these kettles automatically turn off after the water boils. Which brings me to my gripe with this kettle. The base is so light weight and unstable that it can easily move around when one tries to replace the kettle. The last thing you want is an unstable surface and a kettle full of boiling water. The Braun model is much sturdier, with a firm base, but it is very large.