Good middle or money Mache ... Decide for yourself ...

In such products probably Opinions differ very far.
A few months ago I would not have thought that I once so buy a cleaner.
But here is my story:
I bought the old Ford Mondeo my grandfather. Little kilometers, no rust, each service was made by the workshop and of course very low. 1,8l engine with 125hp. (Petrol)
I've had from the beginning when you start problems. He jerked and mucked. Lief somehow round.
I changed: oil, filters, spark plugs, ignition cables, etc. The success was rather moderate.
The problem is not really solved. Especially at idle, he had real problems and simply did not work really well.
A friend (screwdriver colleague) told me that I should buy the stuff here and then let's see if it gets better.
Ok let persuade purchased.
Now what comes to me is a clear slap in the face ... because of "so what I do not need ... Only money making" ...
The action came after about 300 km a ...
Engine start suddenly goes again ... and without major problems ...
Idle is calm and stable ...
Chill the power is again fully there and it runs across the entire speed range better.
Also I come with a full tank (I almost always drive the same route to work 90km) about 50km further ...

Whether I think about it now imagining everything?
Whether my car just ran better again?
Whether this means actually does what it promises?

Decide for yourself ... I've learned my lesson and can only say in this case: Thank you for this product. I'll buy it again ...