I have had it for about a month and it is exceptional so far not a single problem. I have had a different brand that ceased to work and was leery about what to buy but feel extremely pleased with my decision.
I bought the Waterpik Flosser a month ago. It is very easy to use. It cleans the gums and makes your mouth feel very nice. It was recommended to us by our hygienist. I think it will improve my overall Dental check-ups.