It is positive that the pin having an excellent workmanship and has a nice focal point.
However, the Ipad for writing is not suitable, since the surface of the finger, but not for a pen is designed.
The pen must be just patched. Lateral touchdown, as it corresponds to a natural writing movement is not possible. The writing is also too coarse and may subside by pressure or the like in the Strichintensitität not be varied.
But that is certainly not the "Jot Pro" pin in debt, but the input device itself.
The tip of the stylus is better achieved than with the rubber tip but does not help the iPad because of technical limitations. The manufacturer promises can not be fulfilled on the iPad. That's why 3 stars!
For Galaxy Note Tablet certainly the best stylus there is.