The toothbrushes brushing just as good as the original. The price is the hammer. Only when setting the massage brushes are a little louder. It is however unclear what material these brushes are made. It could possibly toxic material have been used. The packaging is OK, but I have discovered in a somewhat dirt. Under what circumstances are hygienic manufactured and packaged the brush is unclear. Remedy at least one wash in the dishwasher. Maybe there are people who have tested this brushes for contaminants. Unfortunately I have found nothing about this on the Internet. Personally I use this and give due to the price-performance ratio 5 Stars.
Update: after about a year, I'll stay with the vote. It happens sometimes that a toothbrush is losing a few bristles. Then simply discard the toothbrush and use a new one. For the price this is not an issue. The loose bristles are still very uncomfortable in the mouth. And if it happens, then only with a new brush.
The toothbrushes keep the way just as long as the original. In the household, we continue to use both versions "Original" and "imitation".
And one more point: I have no further testing found that examined the composition of the material (eg, pollutants).
