This is a good collection of hard-to-find and previously unreleased Dixon sides, although there are several Chess tracks that were left off that would have made it much more valuable.
The title track is especially worthwhile, as is "Tail Dragger," but it is also easy to see from this collection why Dixon was never quite a star in his own right as a performer -- he has a good voice, but not a very memorable or powerful one, compared with Muddy Waters, Howlin' Wolf et al.