Efficient but a bit noisy at the unpleasant to the touch typing and listening

User aluminum keyboard on mac, it is not possible to directly access some standard keys such as pipe | braces {} etc when connects on Linux or Windows machines.
So I chose this standard keyboard aluminum order to have the standard keys PC & Linux but also hoping to return to the comfort of use of the Mac keyboard aluminum.
In terms of standard keys, no problem it works well on Linux and Windows.
As against this is nowhere near the level of touch, silence and even flow of aluminum Mac keyboard.
The more uncomfortable, the sound of keys when seized intensively. We appreciate the quick return to the Mac keyboard.