I don't think I could praise this apartment more highly. Not only was it extremely well designed with modern flourishes juxtaposed against what is the very clearly old structure (Galileo grew up across the street, yes that Galileo), but it was comfortable, and it felt luxurious. It was pristine when we arrived and the washing machine was a life-saver.
A word of caution for those over 6ft tall - you will hit your head at some point in the loft space. But that should not be a deterrent from staying here.
For tourists, it's close to basically everything you want to get to, and far enough away from it for those days you want to call it an early night. Just a superb place.