Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fantastic value, great sunglasses!

I bought these for an event for myself and several friends, and it was great! We all enjoyed wearing these, they were cheap, and they are relatively durable. The coating does tend to come off if you scratch them, but it's that way with most mirrored glasses. You really can't beat the price on these--and you can order a whole bunch!