This one is more modern in its original size as my shower but the same defects. Yes, the economy has some constraints. She makes a little noise. Lot less than my previous model but much more than 12 spray / min classic.
The foaming effect of air and water mixture is very nice but gives a feeling of poor rinsing. There is nothing and it is unnecessary and against performer remains longer in the shower. Rinsing will not be better and the water consumption will increase. It is an impression but not a reality. Out of the shower, it is rinsed with a conventional doucette 12l / min.
To puzzled, get you the number 462 (July-August 2011) of 60 million consumers. A test is performed eco showers. This one is well ahead and much better than my home shower that still exists (ECO techinques Venturi) but the price and the distribution system is no longer competitive.