I have been a Bonzo fan for more than 30 years, having discovered them right after they disbanded. Bonzo's witty lyrics and stage antics distracted many listeners from their high degree of musicianship. The performances are very strong and the songs are catchy and memorable.
The first four Bonzo albums are all masterpieces of dada pop/rock: get Gorilla, Urban Spaceman, Tadpoles and Keynsham (and yes, I recommend that you should buy them - each deserves five stars) before you buy Anthropology. Anthropology is mostly demos for Tadpoles and Keynsham. If you get the Cornology box set plus Anthropology then you will have almost everything.