Instruct: Classify a given Amazon review as either positive or negative.
Query: Mopping Up

My Pro Twist mop has a stiff brush at the bottom of the mop for hard to remove spots, stains and stuck on matter from tile floors. (My dogs are 18 and 15 years old and accidents happen.) I use my mop daily and it works beautifully without much effort at scrubbing so I ordered this refill and was very disappointed to find that there was no brush at the bottom but rather a small "scuff eraser" which will not do the job I need it to do and is not that great on scuff marks either. If this information had been included in the description, I would not have ordered it.