there is a free hotel shuttle back and forth. The hilton coach will drop you near Marcellus theatre, a stone's throw from piazza venezia, right downtown. Moreover, after seeing the suburbs of rome in details , you'll have the chance to see the herculean therms of caracalla on the right side.
the executive lounge is nothing special and for breakfast, forget about the lounge and go instead to the main buffet on the ground floor and.