I am a believer!!
After using it for 3 days, let me tell you... I feel like I won the lottery with this purchase! My teeth feels just like after my dentist polishes my teeth after my semi-annual cleaning!
I already have another tooth cleaner at home and I bought this one so I can take it on my travels because I can't live without it anymore. And I was surprised that even portable it has super strength leaving teeth clean and fresh.