I own the large water-pik and bought the cordless for travel-works just as well as the full-sized product. Only difference is smaller reservoir-have to refill to do your entire mouth.
I'm not a flossed, much to my Dental Asst daughter, but wow!! Either I'm not using this product correctly or I should have been a long time ago! The water pressure is really strong and made my mouth hurt for two days! I will attempt it again soon and maybe the number of stars will increase!
I use a larger one at home and love it, but bought this one while on vacation as a travel one. It is more powerful than mine at home. The liquid runs out before I am finished. Also, the flow is more forceful, sometimes causing bleeding.
We bought this a month ago, it's a great water pick but 30 seconds of water is just not enough. I have to fill it up four times just to get through doing the all of my teeth. Our money would have been better spent buying a bulkier model. We were hoping not to have to take up so much counter space, but giving up the space would have been worth more than having to do so many refills. We love waterpik, we just should have made the choice to go with a larger model.