"With the understandable exception of "Grow Old with Me," a recording which can't help but betray its humble roots, everything here does sound brighter than its original, and more expansive, too. This is especially apparent on "Instant Karma!," "Cold Turkey," and the selections from Mind Games, all recordings that were quite dense and colorful upon their original release, but here they almost sparkle. Whether this is an improvement is a matter of personal taste, but it's true that the Ultimate Mixes do deliver a state-of-the-art aural upgrade, which is a selling point for fans who have purchased this material before".