After a 4-week usage, I've been buying up to now does not regret. The device is more expensive than most competing models available in Germany and provides for the higher price a decent value. Everything is well thought out and very user-friendly. Especially good: the water / air-jet is very effective, the force (adjustable with large control range) and the number of pulsations can be achieved not nearly of the competition. After use you have an incredibly clean feeling in the mouth. And: who is often on the road: the upper corrugated portion can be removed and turned inside removing the blue cover over the device. So everything is practical and protective packaging. - I would highly recommend this very irrigator. It would be desirable only a revision of the manual, the translation often enticed into German to smile, but the device is self-explanatory.