Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Bad Product - Poor Service from Target

I purchased this product from Target a year ago as a Xmas gift. I had nothing but trouble with it. The poor design caused the handlebars to continue to vibrate loose. Eventually the handle bar cracked in half creating a significant safety concern. Eventually, the power system completely failed. I contacted Target and they failed to provide any remedy. It is concerning to me that Target would sell a product that was unsafe at the time and ignore their customers request for help. I would not purchase this product, nor would I shop at target if you are concerned about service after the sale.