Instruct: Classify Amazon reviews into positive or negative sentiment
Query: disappointed with quality

Purchased these for my husband, who loved them initially, but less than a week after he began to wear them, the stitching around the perimeter of the sole began to unravel on both slippers. The elastic side gussets also took on a scalloped look. Sent them back and was told that the same problem would occur again with a replacement pair, so I am now looking for a new brand to replace them with.