It's funny - because it was my distinct impression that T4 Madrid's internals had been highly subjugated to the esoterics of the building and a main casualty was signage. I particularly noticed both a lack of some important signage and that some were completely obscured by support structures. I found myslef wondering why they had decided to continue to mount some strategic signs that clearly nobody would be able to see unless they were under it.
A great building that seemed gloriously open but very long badly signed walks and some rather over long and over narrow escalators.