Instruct: Classify the given review into positive or negative sentiment.
Query: Variable Quality

These are our dog's favorite treats, or were. They are usually light brown, with a distinctive "gamy" aroma. I ordered eight (8) bags, and received seven (7), in three different shipments. I assume that they came from different suppliers. The contents of two of the bags was very different from what we've always gotten in the past. The treats were dark brown with a decidedly acrid smell. The dog won't touch them - they seem somehow fermented. We are now reluctant to order, since we can't be sure if we'll get the "good treats" or the "bad treats."