I switched from Sonicare
I was ready for a new system and my dentist recommended the 8800 series.  I was skeptical because I loved my Sonicare. This is a great system -  I did notice a difference in just a few days.  I really like having a choice of brush heads and the gum stimulators.  (It doesn't get 5 stars because it's noisier during use.)
Rating: 4 stars