There seems to be a lot of angst lately here and from a lot of people that have not actually used the lens.
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I don't think that people are afraid (funny that you use the German word "Angst" ), they know what they will get if they order. So if you don't need a reliable Eye-AF (mine had a hit rate somewhere in between 30-50%), AF-S is really very good.
However, what I don't understand. There are people who say they don't need a working eye-AF. But well, the day might come where you want to sell it. If there's no firmware update fixing this issue (which I cannot really believe), lots of potential buyers won't buy it exactly for this failure. Personally I will buy again but only if this issue is fixed.