I purchased this on the recommendation of my dentist. I use it twice and can not use it. It only had one speed and it was way to strong of a flow. My gums were very irritated and I ended up with blisters. I understand there is one with a slower speed option but I am afraid to try one again.
I have been using my Water Pik at the recommendation of my dentist daily for more than 6 years. The battery on my last one died after about 6 years, so I replaced it with exactly the same model.