Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Do not buy a powershot!

I bought this on amazon just over a year ago.. worked fine till just out of warranty, then all the pictures began to come our overexposed. I sent it into Canon and they want 157 dollars to repair it or replace with a refurbished model. It cost 259 new! I wrote them and told them that I expected a lightly used expensive digital camera to work more than one year, but no dice. I'll never buy another Canon. Beware!