My periodontist recommended using this type of device to help reach areas my toothbrush misses. So far I am satisfied with how easy it is to use and I'm hopeful my dentist will be happy with the results.
Due to periodontal issues, my dentaist highly recommended I start using a water pik. Took some getting used to. Will see how it's helping at my next visit to the dentist. So far so good as far as I can tell.