I love this machine, it helps so much more than just flossing. Its easy to use and even though its not a rechargeable, it is very convenient to use and I LOVE the water flow adjustments and a plus is that on setting 10, it cleans the grime out of my bathroom sink!
My hygenist recommended using a watrpik for flossing. It's great since I have very tight spaces between teeth and have always struggled with shredding floss!