Purchased the Waterpik little over a month ago and have been pleasantly surprised for the most part. Very easy to use and take care of, and it is very effective in helping to clean my gums/teeth. It is nothing special (no bells and whistles) except for the fact that it does what I wanted it for - oral hygiene!
Bought product because it was portable and rechargeable. Unfortunately the charger is not multi voltage. Therefore it is not suitable for use when travelling. Certainly much better to use than dental floss.
I purchased this about a month ago and am very pleased with results and ease of use. My Grandchildren are also using it and it is easy for them as well. Plan on getting them one now.