Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Replacement #2

Ordered this as a Christmas gift and we loved it until it stopped working after using about a dozen times. Same problems as many other reviewers - the system would hum, may or may not pull water over to heat it and then would either read "Not Ready" or would simply shut off. Called Keurig customer service. They took me through a few cleaning steps with my machine and when it still didn't work they sent me a new machine. Received the replacement (a step up in models as my first was the B60 and they replaced it with the Platinum B70) and after 2 weeks it had the same issues. Called Keurig again and they are sending a new replacement that is from a "new shipment that has been tested for the issues that some machines were having." I hope that is true as I loved the machine when it actually worked!