It restricts the water flow much more than it should. Even if the flow restrictor is removed (which is not easy at all, nor does it come with instructions, but it can be done), it doesn't have even 2/3 of the pressure of the previous Grohe I had. Also, in Rain+O2 mode, it makes a lot of noise. Only get it if you want to save water.

you can always remove the flow restrictor (which is made as a small 'filter cap' in the entrance' of the showerhead) and not suffer from low pressure.
it is made for people who want to save on water consumption, but luckily it is removable, so if you want to enjoy full pressure, you are able to do that

This particular phone does not have a strong water flow! It drives you crazy.
The worst thing Grohe has released. They are becoming completely fake.
Waste of money.....
I threw it away, luckily I had kept the previous one and cleaned it from the salts, so we are with the old and the Good!!!

It's a shame for the money I spent. It has good construction but it reduces water pressure. Useless. It also makes noise when running, no matter where I place it, it leaks a little.

I decided to get a new shower and I decided to get something more well-known, I can't say that I was impressed, I expected something better, it doesn't have good flow and I have good pressure since I am on the ground floor, it has a sturdy construction but it's not what I wanted in terms of flow, I took it out and put the old one back in.