Very Good, but different!

As expected, only the tap is opened, it's very powerful and it uses very little water. It shows just the foam on the bottom of the shower drains just with the little water that ultimately is used. It's pretty impressive!
Of the 3 jets, there is one with a very soft and pleasant feeling, another more dynamic but less rinse and drip which I do not understand the utility too (equivalent to "stop shower" but stop completely?).

Downside: the jets are quite thin, and watering was not "wide" standard showers.

Another point to know before you buy: it is very powerful, so it's quite a splash. It is to be used in enclosed shower or bath with bath screen. One might think that just open the tap for less solve the problem, but in this case, there is enough water comes out.
It is also a problem with the boilers without the ball, which snap at the request, when there is enough water that is drawn ... she may never light up!

Finally, do not expect a "normal" shower consumes less. The water savings is clearly there, but the feeling is different.
It takes a little adjustment period, you should know that it really is not suitable for bathtubs and some boilers, but in the end I love it! If they manage to make a model with a larger jet, I would put it the 5 stars!