Philo gives a rather negative picture of him.
Philo, Embassy to Caligula XXXVIII. (299)”... Pilate was one of the emperor’s lieutenants, having been appointed governor of Judaea. . .
“But this last sentence exasperated him [Pilate] in the greatest possible degree, as he feared least they might in reality go on an embassy to the emperor, and might impeach him with respect to other particulars of his government,
“in respect of his corruption, and his acts of insolence, and his rapine, and his habit of insulting people, and his cruelty, and his continual murders of people untried and uncondemned, and his never ending, and gratuitous, and most grievous inhumanity.”
etc.