Water Flossing is a good idea to help keep your teeth clean and remove some food particles from between your teeth.
However even a good water flossing can miss some food between your teeth and may not get your teeth as clean as regular string flossing would.
Dentists recommend that you use both a water flossing device and also use string flossing to keep your teeth the cleanest.
I water floss myself but it doesn't get all the food or other particles from between all my teeth so after water flossing to get the majority of the food and particles out of my teeth I then follow through with string flossing which removes the rest of the food particles.
So water flossing is good but string flossing is always the best along with brushing your teeth after every meal to keep your teeth and gums in good health and to prevent cavities and other dental problems including gum disease.
I also like to use coconut oil for oil pulling which also gets the teeth clean and removes any bacteria in the mouth.