Instruct: Classify Amazon reviews into positive or negative sentiment
Query: No Power

The OxyJet is useless. I had a very useful WaterPik 10 years ago which had 10 times the force than this OxyJet. Picked the Braun this time because of packaging and of their reputation and past experiences with their other products. Huge dissappointment with Braun. The only thing this is good for, is for my kid to play with.The 3D plaque remover on the other hand is great. But skip this product and you can get 2 plaque removers.