In The Guardian of 17 December 1965, Francis Iles (Anthony Berkeley Cox) said that, "At Bertram's Hotel can hardly be called a major Agatha Christie, for in spite of the presence of Miss Marples (sic) the denouement is really too far-fetched.
Robert Weaver in the Toronto Daily Star of 8 January 1966 said, "At Bertram's Hotel is vintage Agatha Christie: an ingenious mystery that triumphantly gets away with what in lesser hands would be the most outrageous coincidences."[REF] .