The I VI ii V progression is found in many jazz standards (including the A section of Rhythm Changes) – often as a turnaround at the end of a section or the end of the song.
This works as a turnaround because the ii > V wants to resolve back to the I (the tonic).
What’s unique here is the fact that the VI chord is Major. In a diatonic major key, the 6 Chord is minor.
In jazz, the vi chord is often substituted with a VI7(b9) chord.
In the key of C, the vi chord of Aminor7 is changed to A7(b9)
The VI7(b9) chord creates some nice tension that is resolved when you hit the iim7 chord.