You can pretty much divide this CD into two parts: the first 6 tracks are greasy 50s r&b recorded for the small independent Detroit label Fortune around 1956-57, and the other 22 are mostly instrumental soul recorded between 1965 and 1970.
While I like both genres, for me the 1950s material comes off much better - the opening "Bacon Fat" and its sequel, "The Greasy Chicken", are hilarious talking records with lowdown, scuzzy r&b rhythm tracks, both highly danceable despite their slow tempos. "I Just Want A Little Lovin'" is pretty much a re-write of Muddy Waters's "I Just Want To Make Love To You" but none the worse for that, the superb "Jail Bait" (with a marvellous brass section riffing away moodily) is a cautionary tale that stays just about the right side of bad taste and "(M M M M Andre Williams Is) M-M-Movin'" and "I'm Movin' On" are nice car songs.
While the low budget recordings on the 1950s material are part of their charm, on the 1960s soul material, mostly instrumentals, one gets the feeling that a bit more care and attention lavished on the recordings might have improved them considerably. You can imagine a lot of them playing in the club scene in some 60s B-movie, but none of them really stand out as notable tunes. Some of them have talking vocals like the 1950s records, but again they're just not as funny or inspired. The rhythm sections on these tunes, however, are always exemplary, it's just the tunes that aren't very interesting; this all gives the impression that Williams's real forte during the 1960s was producing other artists, which he did with some success.
So this CD is worth buying for the R&B stuff, which deserves 5 stars (it would be nice if more of the CD was dedicated to it, he recorded loads) but if you're looking for a bunch of nice obscure 60s soul, you can find far better elsewhere - this stuff only merits 2 stars.