Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Poor Design

There is only one speed, which is really strong and empties the water tank way too quick. Basically the tank holds enough water to last about 5 seconds. If you accidentally push on the top half of the item while holding it water spills out at the center of the device. In addition the product is too big and bulky for the average woman's hand. It is hard to direct the water flow in your mouth and hold it at the same time. What a mess it can make, water was everywhere.