I'm sorry to be negative, but it's important to give you feedback. I have previously had a rotary electric toothbrush and always looked forward to cleaning my teeth. But I cannot tolerate your oscillating toothbrush because of the effect on my lips and tongue. I set it on "Clean" but proximity to my lips, tongue and gums was unbearable due to the over-stimulation of those sensitive areas. For me it was like a torture implement and I started to dread the thought of cleaning my teeth. So in the end I gave up. My partner is now using it on "Gentle" and doesn't mind it. I hope this is interesting. Thank you.