Instruct: Classify the given review into positive or negative sentiment.
Query: doesn't clean well

I bought the showerbreeze because of its convenience. No filling of reservoir and no motor noise.However, I noticed right away that the jet is very spread out. So while it give perception of a lot of water, the actual peak force is less. Also, it's more difficult to aim at the right direction.After using it for 2 weeks, I had a gum infection. I switched back to my old $25 interplak, and cleaned out a bunch of stuck debris, and some black blood. For the next few days, I would use the showerbreeze first, then shows my old interplak can clean out additional debris.After not having any dental problem in last 5 years, I think I have something that needs fixing right away, thanks to the showerbreeze.