I've heard that some of the German-English translations are very poor and make it out to be worse than what it is (long words you cannot understand, long sentences that don't really make any sense) and so on. I'm Polish and have always wanted to read this book and there is a German-Polish translation of the book and was thinking of buying it.
I have looked around on the internet and some of his quotes and ideas are actually good for example believing that jobs should go to people that are best suited at them and not just anyone and that everyone should be healthy and fit and he says boxing is what men should learn to be able to defend themselves and I do agree in his view about people with genetic illnesses be better to adopt a child than make a child suffer from it.
Good reads, Amazon and a few other sites have some very interesting reviews on it - from Germans themselves in both Austria and Germany.