I bought this almost a month ago and I am EXTREMLEY satisfied with the ourchase of this item! Not so much the price, I believe I could have got it at another place for cheaper price but I was just too impatient. But I love it so far. The cordless is so convenient. The only problem is I have to keep your refilling every 45 seconds. But that is not a problem since I'm over the counter anyways, I just fill it up working in there. And I feel like my teeth are away much cleaner since I've been using it. I don't know if it's a substitute for flossing but I kind of made it a substitute for floss. Lol. Meaning I don't floss anymore I just use the water as my flosser. If I'm doing it wrong please advise me and let me know. Haha