Using more than 3 years of electric brushes famous brand, I decided nevertheless to try out the vaunted brush. I liked that there is a removable nozzle. Agree, it is very convenient. No need to spend money to buy a new brush, just need to change nazadku all. Hold the brush is very comfortable in the hand. Overall, I liked it. But the bristles to me seemed a bit soft, so put 4 (probably due to the fact that was used to clean teeth electric brush). Please put "YES", if the review useful to you.