I bought this because of the size. As many reviews state, it does not have consistent power. I have started only filling 1/2 which seems to help and just filling again to get the full amount of usage. If you need extra power and more time you should go to the larger waterpik.
No, I would not recommend this to a friend.
Response from waterpik.comBy Waterpik, Product Support, April 11, 2017
Thank you for your feedback! Inconsistent performance can suggest the device and/or accessories may benefit from cleaning. You may view more specific cleaning instructions by visiting: https://www.waterpik.com/oral-health/blog/how-to-clean-waterpik-water-flosser-vinegar/. Please contact our customer service team for any further assistance: 1-800-525-2774
I bought this after my dentist suggested that I get it. I have found that even after flossing with regular floss, the Waterpik still removes particles left behind! Makes Emmy mouth feel so clean and refreshed!