Water stream is extremely powerful. The pressure was painful to my gums. I will continue trying to use it.
No, I would not recommend this to a friend.
Response from waterpik.comBy Waterpik, Product Support, April 2, 2018
Thank you for the review. If you have not been flossing regularly and experience discomfort, then it might take two weeks of daily water flossing to strengthen your gums. This is due to gum health issues rather than water flossing itself. (If your discomfort persists or you experience bleeding gums that hurt or are red and swollen, contact a dental professional for an assessment of your oral health.) If you need further assistance, please contact customer service at 1-800-525-2774 Monday through Friday from 7:00am to 5:00pm Mountain time.
I've been using the water pik for about a month now to help me floss with my braces. I wish I would've purchased this sooner. I love it!! Its easy to use and maintain. I like flossing now. I totally recommend this for everyone.