I'm a bit at loss here...
… with “La Pace” entry… there’s actually a Via della Pace, a Bar della Pace, a Santa Maria della Pace… and so on.
I suspect the author refers to what used to be the pricey VIP hangout (the bar). I would encourage people to walk 20 meters further and visit the Chiostro del Bramante. At least, whatever art exhibit is being held there, it should be worthier than the sad human one next door… :)