Tested on a Windows PC 8.1 (Asus T100) and Samsung Galaxy S2, this stylus has been very pleasant to use.
However we may regret a cruel lack of precision when it comes to taking note taking. Indeed the Windows 8 application is not reactive enough (or is it the slab of the screen, the PC ??) so that you do not write satisfactorily as soon as the we increase the pace a bit, unfortunately.