Good and cheap alternative to the original Apple board

Have the part acquired here for scarce 30 euro, what ever is priced an advantage of 50% compared to Apple's trackpad.
Did it just for fun bought to test it once.
After upgrading to OSX Yosemite the original began trackpad to zicken to around to test the opportunity Logitech.
After the driver installation manager appears in the system settings of the Logitech Preference.
Settings, gesture control, as well as the graphical interface of the Logitech PM agree with the model of the Apple Trackpad match control, even the explanatory videos to Apple Trackpad control were integrated.
Logitech's pad is slightly higher, but overall the angle her flat.
The surface of the Logitech Pads I feel even more pleasant, visually and sensually, than Apple's original.
Another advantage of the built-in battery and the possibility of using a USB cable to recharge the pad.
Assuming you installed the Logitech Preference Manager,
(It also works without software after the Bluetooth pairing, but only the rudimentary basic function)
a good and cheap alternative to Apple's trackpad ...