Some defects, which should not be at the price there

So I have to say I am not satisfied with this faucet. I have my entire household furnishings me Grohe, 3 bathrooms / toilets and the kitchen, Wei Lich actually am very satisfied with the quality. This faucet stands out so negative that I have to submit a review.
It's not all bad, so anticipate some pluses:
- Usual solid, heavy processing (except for the pull-out portion which is made of plastic but I think he is exactly why plastic is:. To allow an easy return and thus put the thing somewhat horizontally in the fitting remains, it must be easy)
- The pan is smooth as silk

Now the criticism:
- I have put especially on Grohe, because our former no-name faucet was incredibly stiff. Grohe marketed the smooth running of the mixer as a "SilkMove". In our basin mixer in the bathroom, it is also like silk: you can set very precise quantity and temperature, without jerking as if no pressure on the line. Not here: First of all builds to apply pressure to lever (which is advised very small) on, then it moves jerkily. At about 2cm Hebelweg (at the top) nothing happens, then passed on further 1.5-2cm everything: first no water, then too much. It's incredibly difficult to adjust with the lever in the quantity or temperature. I ask for comments, if someone uses another this faucet, and it is not so with him - I would like to lodge a complaint. Maybe I've a Monday model. -2 Points.
- "Pull-out mousseur" - that I do not laugh. As if as only the finest foam would come out ahead. This too can Grohe better (about the Euro Plus model). Here only comes out a solid stream of water reached the bottom vollspritzt the whole kitchen. So you have to turn up more than you want to "activate" the aerator to, and even then the beam is too hard and bubbly. Well, that you can easily expand the exchange and - I'll tackle. -1 Point