This seems to be an album which is generally underrated by most blues enthusiasts but don't be put off. It is true that some of the Chess/London recordings are a little flat and lifeless but this might be the notable exception.
Firstly, the recording is excellent. This means that for the non blues enthusiast, this is an easy record to listen to. There is none of the sonic obsticles which litter some of Muddy's classic recordings of the early 50's, the poor balance or tonal range. So for the uninitiated this could be a good starting point.
Second, the selection of songs is diverse enough to be interesting. There's the straight blues of Key to the Highway, the Delta feel of Walking Blues to the Jazzy swing feel of I'm Ready.
Thirdly, most of the performances are solid. Ok, this isn't Muddy's Chess era band but the band is good. I've heard criticisms of Mitch Mitchell's drumming which to me just don't stand up, It's almost as if people want him to have overplayed and got in the way of the feel. He plays with plenty to spare and keeps a good groove throughout. Gallagher gets the feel of this so well you'd never know it was him, it's nothing like his playing on his then current album; Deuce. Harmonica roars on this selection too and the interplay between harmonica, vocal and guitar is great. Only Steve Winwood fails to impress in this, although his playing is still competent and certainly doesn't get in the way.
Muddy Himself is not at the height of his powers, but he seems to be enjoying himself. The vocal performance is still strong and soulful. So if you are a blues fan or just curious about the genre, this album represents a good buy and an enjoyable listen.