I am very disappointed with the design and effectiveness of my Waterpik. The design makes it difficult to maneuver in my mouth. I also question the results after a cleaning. I will continue to use the product and may become more efficient.
No, I would not recommend this to a friend.
Response from waterpik.comBy Waterpik, Product Support, February 14, 2018
We are sorry you are having difficulty using the product. Below is a link to a helpful video with tips on how to use the WP-450.
I'm a dental professional and I hate flossing! I got a water pik for Christmas and I can't put it down! My teeth feel so clean. I tell all our patients about my experiance.
I would recommend this to a friend!
Response from waterpik.comBy Waterpik, Product Support, February 14, 2018
We are happy that you are enjoying the product and thank you for the recommendations!
There's a short learning curve where you'll eventually learn to lean over the sink and keep the waterpik's water resevior perpendicular to the counter; if you till it too much it won't pump out water. If you turn the pick around with the controls facing you, it's a little easier to use but you might accidentally nudge the controls (I've done it with the speed control). It seems to hold a charge for a while but I recharge mine weekly. I haven't had any problems with water calcification but the instruction manual has some cleaning tips.