I bought one for my son as a Christmas gift and one for myself. I like to use Listerine in the tank as it gives a nice finish. Just try out all the nozzles and you will be surprised how well the flow works and they give you an extra clean feeling.
I bought this Waterpik about a month ago and I am so very happy with it. My teeth and gums feel so good afterwards and even after brushing and flossing I use my Waterpik and there is still stuff that that it gets that brushing and flossing leave behind. I’ve also used the travel Waterpik that came with my regular sized one and it also works perfectly and I like that there are 12 tips with both of them so I have enough tips for both units. I would definitely buy again.
I bought this model a month or so ago, and so far so good. I have very hard water so I buy distilled water to use in it. I bought several of the other models, and they lasted only a very short time, and my bad for not keeping receipts, but they were very disappointing. I hope this one lasts.