Instruct: Classify the given review into positive or negative sentiment.
Query: drop this business line

Product is great. This was to be my second shipment of glasses from Amazon. Trouble, as noted in other reviews, is that Amazon seems unable to ship wine glasses without breaking them. First order last year had 1 broken out of 18 so I kept them; you have to return entire package to Amazon if one broken. This order has 2 broken out of 6 and Amazon could not fill order due to product shortage. Amazon packages glasses as if they are books. Amazon needs to get act together or get out of this line of business.