I saw this film when it was released in 1956. It was the first production for mainstream audiences to feature top R&B and R&R acts in color. My contemporaries were particularly delighted to see Little Richard, Fats Domino and The Platters on screen in color for the first time. I made a VHS copy from a cable TV screening, but later purchased a legal VHS release, only to find that the cable screening used a better copy, both audio and video wise.
The only complaint I have about the film is that every one of the musical acts is interrupted by dialog.
Despite that, especially for nostalgia buffs, it's still well-worth getting.