Madre de Dios (album)

[5] Guitar World described the Big Muff as a "blown-out, bass-heavy fuzz" and in regard to the Russian variations in particular "each sounds very different to the connoisseur, but there's a general trend towards fuller bass and a thicker low-mid.

[8] Commenting on the recording techniques of the album the magazine laut.de said, "The work is completely self-produced and may therefore appear a little sloppy, but this guarantees a lot of vintage flair" giving an example of this with the prog sounding synth intro on "Let The Shit Roll".

[11] In the book Desperate Measures: Posters Prints and More, Frank Kozik described the thematic and sonic context of the album with the statement, "Swirling Galaxies of star dust slowly unfurl to reveal thundering riffs of deepest space.

The reviewer observed that this resulted from the band combining the pentatonic blues based lead guitar of 1970's proto-metal pioneers with early 1980's punk influenced thrash metal rhythm parts.

"[19] Visions magazine gave the album a classification as being rooted in the "stoner" genre with standout tracks like "TX-9" which displayed examples of the band's "doomy grandeur and psychedelic nuances" and "Freeloader" with its Palm Desert Scene inspired vocal lines from lead singer/guitarist Fredrik Nordin.