My teeth, especially the rear jaw teeth are now much cleaner and into the heart of which are hard to reach part, is now much cleaner.
The timer does not like me thought carefully a Pipen but remains 3 times in a row are about.
Quality that convinces me, even my dentist, it is noticed that I now have a lot of clean teeth.
Price performance is very good, except for the brush heads that are quite expensive.
All in all: Super product is very well made and the teeth polished to a high gloss
Update: was broken after two years, what a miracle that this happened after the warranty has expired.