This is the third Waterpik I have purchased because it reaches areas between my teeth that no toothbrush, electric or manual, can reach. The last one I purchased was a gift to my sister as she had a stroke and has some difficulty brushing.
I never really thought about buying this product until my dentist suggested it. I am So glad that I did. It does a great job keeping my teeth cleaner than clean.
I bought this WaterPik to replace one we've had for 5 years. The design of the last one caused mildew/mold to grow on the unit. Never recall having this problem with other units. We're hoping that this new one does not have the same issue.