Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Braun and Quality is a contradiction

I have been using Braun shaving systems since the mid 80's. Completely satisfied until purchasing this system. Do not know whether this is due to P&G taking ownership, but they have definitely gone from a top of the line product to not worth the box it came in. My unit has been back for warranty service 4 times since purchase, and I have no confidence that it will last another 4 months. Don't waste your money..on this overpriced headache !!!!!