I was looking at the comparison before/after ... that you posted earlier. http://www.canonrumors.com/forum/index.php?action=dlattach;topic=24028.0;attach=127750;image
Sorry, but to me it does not look good, afterwards.
Personally, I would lift exposure by about +1 EV globally on a capture like your original image - but not more.
Heck, it is a dark environment, deep in the shade. I find it perfectly OK if the resulting image also shows this.
But again, I do not want to pick a fight here. Quite likely that some of you here have far superior PP skills to mine and that you get away with shadows +3 EV pulled up from a Canon (7D or similar crop) sensor . At least in some pictures.
Opposite example to your image ist the one LeeJay posted, the shopping mall or hotel lobby ... uniformly bright place, hardly any contiguos dark areas in the image, and those visible do not contain image-relevant information/detail, so it is hard to see noise or degradation in details from NR.
I just know, that *I* would NOT be able to create the image linked in the starting post (Erez) from a single exposure on a Canon 7D or any other crop sensro (except 7D II which I don't know anything about yet).
And I also know first hand what some of my budies can do with Raws from D7100, A7, D800. There is a whole magnitude more potential to lift shadows in low ISO captures.
btw: no, I have not seen the Erez image in full resolution either, but I don't think there es a lot of detail loss/image degradation from lifting shadws visible.