Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Terrible cookbook

I find it hard to believe that anyone tested these recipes before printing this book. I found myself saying many times while baking these cupcakes, "Well this really doesn't seem right. But they claim to be cupcake experts so I'll give it a try." There were multiple editing errors (such as ingredients being listed in the ingredient column, but never mentioned in the actual recipe). The cupcakes tasted bad. I'm so upset that I wasted my money on the ingredients.Don't waste your money on this cupcake book. If the recipes seem somewhat simple, they turn out bad. I didn't even attempt the crazy complicated recipes because they were labor intensive and called for expensive and/or exotic ingredients.