Instruct: Classify Amazon reviews into positive or negative sentiment
Query: They were very quick with Delivery, I had a minr problem and they explained how to fix and if it does not work they agreed to ex

I purchased the battery for a fraction of a charge than paying to Dell. Service of delivery was very quick - three days. I just recently incurred a minor problem and I asked them - they responded right away and they asked me to follow couple of instructions. I did and problem got solved. They insured to exchange the battery if it did not work the problem. They were polite and helpful - no hassels.I reviewed **** at the present moment just incase. But I would rate it full *****. I am very happy with the product and price and service.