almost as good as my ultreo [SEP] the ultreo was the best toothbrush i have ever had but it had a bad failing the rechargeable batteries in the handle were of poor quality and not replaceable during ultreos short life they sent me three replacement handles when the company failed i bought a bunch of replacement brushes but the handle soon failed again but i was able to sell my extra brushes on ebay for a very tidy sum next i bought the sonicare it was quite good but when i got the new hydroclean brush heads i realized they were almost as good as my old ultreo i feel this is quite a accomplishment as i loved my ultreo ultreo is now back in business but i will stick with my sonicare and hydroclean brush heads