I do not like it what happen to the old tank that holds more water, this model only dose a 1/4 of your mouth it's a pain you have to keep refilling it do not like it.
I bought this about 4 weeks ago; however my blue tip stopped working. I was told I would have to replace it - wasn't happy about this since I had just purchased it.
First water pick I have owned and love using it. My gums feels cleaner and healthier. I would recommend this product for anyone, especially if you have gum issues.
It takes a little practice to get the water jet pointed the way you want it but with a little experience each cleansing is quick and easy. It works far better than dental floss and takes about the same amount of time.