I was able to nab a copy of that German DVD version and it does look good, albeit, to my old eyes it looks a bit dark. If you watch it on your PC with the VLC player it's easy to adjust the contrast.
Upgrades of noirs that existed in sub par versions, like I Wouldn't Be In Your Shoes, are always welcome. However, why bother with a Blu Ray of a noir like Double Indemnity or Out Of The Past that we have watched so many times that it has become part of our DNA? A good example is one of my favorites, Night And The City. Criterion released it first on a DVD then later in Blu Ray. It looks fine on a DVD, in fact, more than fine. Who needs a Blu Ray? We aren't getting any younger with too many other films to see. It's not like we can pack these titles on a luggage rack on our hearse.