Having tried a few cheaper versions I eventually read some more reviews and took my son's advice. This is by far the best stylus I have tried. It does not last forever, however. It lasted me for about 1 year of lecture note taking, three times a week, then the rubber end actually came out. It would not go back in easily and in doing so I damaged it slightly. Although it still writes, it's not particularly good now.
Having said that - I just bought another one, the same one, as I said it is by far the best stylus I have tried. The other cheaper ones are REALLY not worth it.
So 4 stars for being a damn good stylus but one lost for durability.