i think its just the overall design scheme. looks very much in spirit like the sorts of loop office buildings we've gotten the past 10 years or so. i dont know if theres necessary anything wrong with that, but at the end of the day it looks pretty generic and phoned in at this point in time. i guess corporate firms love boring and inoffensive.
even the lobby is like a mashup of 155 n wacker and a couple other newer buildings. the loop is kind of blending together into one indecipherable blue blob at this point for me.
i do like the new riverwalk treatment, but i will also miss General Growth which if nothing else at this point in time, actually manages to stand out in a sea of sameness