More Greatest Hits contains 18 well-known selections from Louis Armstrong's recordings for RCA Victor, including "Boy from New Orleans," "I've Got the World on a String," "High Society," "When You're Smiling," "Pennies from Heaven" and "Please Stop Playin' Those Blues, Boy." It's certainly nothing close to a definitive portrait of Armstrong's RCA recordings, but it's not a bad sampler, either, particularly for casual fans. ~ Stephen Thomas Erlewine, All Music Guide