While it is true that I have made liberal use of Nietzschean insights and observations on this blog, I will be the first to admit to the relative failure of the Nietzschean Project understood as creating a morality that is beyond good and evil.
While Nietzsche saw good and evil as relative quantities, based as he claimed on so-called masterly and slavish instincts, I see them as absolute quantities in the sense that violating or harming others is never a right one possesses except of course for reasons of genuine self-defence which constitutes the masculine principle of protecting one's rights (the feminine principle being the equally important principle of non-aggression).
Nietzsche was also evidently a social phobic and much of his discourse concerning the 'herd', the 'masses', the 'unclean' smacks of an arguable superiority complex that stemmed from his isolation and inability to relate to ordinary people.
All that being said, I see the Nietzschean project of going beyond good and evil as only a partial failure in so far as thinkers can teach us, provided we think for ourselves, as much if not more from their errors of judgement than from their accurate and true statements.
In the case of Nietzsche I learnt the hard way that moral relativism and superiority complexes inevitably lead to suffering and isolation which is why I owe a huge debt to contemporary thinker Mark Passio for enlightening me as to Natural Law as well as to the true, objective, evil that occurs daily in the world and what can be done to fight and redress it.
I also tend to see Heidegger's moral failings as a Nazi (Not-see) and his general suspicions regarding so-called 'moralising' discourse as symptomatic of his being influenced and seduced by Nietzsche as well as of the yawning gaps in his philosophical architecture which, while claiming to fight evil, failed to see that he was himself not free from evil influence and mind control (until of course well after the Second World War as evidenced by his lecture What is Called Thinking?).
In conclusion much can be learnt from Nietzsche and Heidegger's errors of judgement and for this they can be commended if one happens to be in a charitable and forgiving mood.