Fans found lots of things to complain about, one of the most infamous being the enlarged TARDIS windows. The series itself eventually made fun of this point, with a character commenting that the TARDIS can't be a real police box, because "the windows are too big".
It happened all the time with the old series, too — remember, this is a series that's had nine complete turnovers in the regular cast and over a dozen different showrunners with wildly varying approaches. Years before the new series debuted, there was a running joke on one of the online discussion groups that the series was Ruined Forever when they added the time-travelling alien to a perfectly good show about a policeman walking through the fog and hearing a strange noise.
сооооооутруууууууъ.