Not a fan so far. A blob of glass describes it perfectly. It's almost cartoonish. I think I liked the initial design better the pinstripe glass and extra balconies. Not that my subjective opinion matters much in the grand scheme of things. Maybe I'm just being impatient for the final product and that will satisfy me.
This is the only angle that I really appreciate (thanks for the shot, Harry):
Chicago | Vista Tower by
Harry Carmichael, on Flickr