The Waterpik works well. Water pressure can be adjusted to accommodate different areas of the mouth. It does take a bit of coordination to assure the water flow is stopped before pulling the wand from the mouth. The Waterpik is a bit top-heavy when filled with water. I used Velcro dots to hold it to the counter to avoid tipping.
The build is plastic and light. I thought this was another health product gimmick. It took about 4 days of using once a day and my bleeding gums stopped. You just have to get your own system of not making a water mess and start on a low setting. for my 4 day example, i used setting of 2 first day, 4 2nd day, 6 on the rest of the days. Not bad. you will see results with regular use.