Instruct: Classify a given review into positive or negative sentiment.
Query: Think twice before buying this item

I find it hard to believe that Weight Watchers has put their name on this item. This scale is very inconsistent and will give you a different reading every time you step on it. I do use it on a flat, wood floor as recommended, but it can differ by several pounds every time you step on it. I also bought my daughter this scale the same time as I bought mine, and hers does the same thing too so I know mines not just a faulty scale. Think twice about purchasing this item, it's one of the worst things I've ever purchased.