Oh those crazy Danes!
Initial thoughts:
(1) I have some questions/concerns about how that would function as a walkable urban neighborhood, including because of all the many small plazas and switchbacks. Some of the street level renderings look OK, and I do think that diagonal connection to Freedom Plaza is a great idea, but in general that is an issue I would like to hear/see more about;
(2) Overall, though, it is a work of art and it would be a huge thing for Pittsburgh if it could be pulled off in anything close to that form;
(3) The former-new-USX-HQ building sticks out like a sore thumb. I assume they were told to incorporate that, but could we just kill it and start over please?;
(4) In general, the parts closest to Downtown may take a while to be even possible, but if they could just start with the upper residential portion along these lines, that alone would be pretty sweet.