Luciano was a singer with beautiful voice. But was he a great singer? I don't know. He was a lousy actor, that is what I know. His tenor was quite light (he probably was a lyric tenor) and was best suited for roles like Rodolfo in Puccini's "La Boheme", Riccardo in Verdi's "Un Ballo in Maschera" and Nemorino in Donizetti's "L'Elisir d'Amore. He intitially didn't want to sing Otello, but eventually made an Otello recording with Georg Solti. Frankly I don't think the voice is well suited for such a dramatic role as Otello. He was not the most disciplined of the singers: he was often singing out of time. It's as if he was only following his own intuition instead of the conductor's baton.
Chris
Chris