Had gained me the pen to be drawn up in the university on my iPad mini transcripts. However, for this purpose it is only limited suitability for the top is simply "too rough". Although the writing is much easier than with your finger, but is still too imprecise than that of pin + would ipad an alternative to block and normal pen.
As you have observed plus points, however, that the pen is very well made, well in the hand, the tip is replaceable and you get the whole for a relative low price, which is why I give the pen still 4 star.