@Conrad Metzenberg I am currently buying a triplex in the area...I will let you know! Some of the things I look for are rehabs, cool eateries and bars, and community involvement. I see all of that in the Dignowity Hill area. Currently, I use New Braunfels Ave as my boundary - anything east of that street is still a ways off in my opinion. I agree with @Rick Pozos that the "area has lots of people who have been there for a long time and are not moving or rehabbing." However, some will be forced to as property taxes are skyrocketing.
You mentioned being concerned about a C area with C tenants but the cool thing about that area to me is that there are A and B tenants looking for A and B rentals in a C area. In other words, a lot of (mostly) young people want to live there, but finding nice properties to rent is tough. That's the niche I'm trying to deliver to.
I'm excited about the possibilities for that area...if I see a hipster toting a cello, I will let you know!