First, I must confess, that I only caught the second half of the episode due to DVR issues. But, I was interested but potentially concerned about the Tim Gunn save. And this is exactly why. "American Idol" had (maybe has, I confess, I do not watch) a judges save and here were the issues. You never want to use it too early, because invariably as things get tighter, there will be a designer that had some challenges or even - as apparently happened last year when there was an unofficial save - there is a great outfit that maybe isn't quite appropriate for the specifics of the challenge but isn't bad. But, of course, you don't want to be at the last episode before the finale with the save unused, so it tends to get used somewhere in the middle.
And this, well, you are a wise man who obviously spends more time with these designers than I do, but I must say, I like Justin, he seems lovely, but I have not yet seen an outfit that was interesting enough to, I think, deserve a save. And later, if someone like Dom or Braden has a bad day, I will be shaking my fist at the TV wishing that save was there. There is a huge difference between being a talented designer and being good at "Project Runway" and I'm not sure that Justin is the latter. I certainly hope I'm wrong. 
Rants About New (and old) Things