Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: So far, so good...

I am withholding the fifth star as I am waiting to see how long this product adequately lasts....if it does. I am an apple fan, but my friend has a microsoft product and needed a compatible basic easy-to-use mouse. I am not one to really be supportive of Microsoft, but another friend of mine who purchased this same product has had their mouse for sometime and it works great. So far it is doing exactly what my other friend wanted plus it does a lot more than she expected. I will be updating this in a few months to let you know if the product is still of good quality and if it deserves that fifth star. The customer service involved with purchasing this product was beyond impecable.