Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Won't hold up.

There's no doubt that this vacuum has great suction power, picking up massive amounts of dog fur. Unfortunately, after only one week, I have to return it because:1. The dog hair it picked up is IMPOSSIBLE to empty from the chamber without reaching in with my hand or a stick.2. The belt already broke. Granted, it comes with one extra belt, but I have to wonder how long that will last if the first one lasted only one week.