Grazzini was temperamental, his life consequently enlivened or disturbed by various literary quarrels. His Umidi brethren expelled him for a time, because of his ruthless criticism of the Arameans, a party of academicians who maintained that the Florentine language was derived from Hebrew, Chaldee, or some other branch of the Semitic. He was readmitted in 1566, when his friend Salviati was consul.
II Lasca ranks as one of the great masters of Tuscan prose. His style is flexible and abundantly idiomatic, but without affectation. It has the force and freshness of popular speech, whilst retaining a flavour of academic culture.
The stories, though of no special merit as far as the plots are concerned, are told with verve and interest. A number of miscellaneous poems, a few letters and Four Orations to the Cross complete the list of Grazzini's works.
He also edited the works of Francesco Berni, and collected Tutti I trionfi, larri, mascherate o canti carnascialeschi, andati per Firenze dal tempo del Magnifico Lorenzo vecchio de 'Medici fino all'anno 1559. In 1868 Adamo Rossi published in his Ricerche per le biblioteche di Perugia three novelle by Grazzini, from a manuscript of the 16th century in the Comunale of Perugia; and in 1870 a small collection of those poems which have been left unpublished by previous editors appeared at Poggibonsi, Alcune poesie inedite.