I have this series and will say that Hermeneia is not usually the first volume I go to on a passage, but if I have any technical question can be most assured it will be touched upon and usually fairly dealt with. I can speak more to the Continental series which i have found several of the volumes to be invaluable. the CC on Psalms is among my favourite. And Westermann's volumes on Genesis from the CC are a must.
- I should have also mentioned the broadness of Hermeneia, including the only in depth commentary available on the extra Biblical book Enoch, not to mention a commentary on Odes of Solomon from the Septuagint. Not to mention volumes on early church works.