I go through there regularly on my way to elsewhere. However, few people can shop there because really there isn't that many stores left.ECC has basically become a pedway between buildings, more than a mall. I think you'll see very strong foot traffic, but attracting good retailers may continue to be a challenge.
It is sad, you see all those people walking through with almost no where to shop - that could be an opportunity for smart and forward looking retailers.
I know it is in fashion now to conclude downtown retail is dead, but the people are still around and many walking right by the empty store fronts. I don't think eveyone living downtown drives to Unity Square because they love getting in their car for a 5 to 10 minute drive. It is because the stores are not in the downtown core.