Sound — 9
Dave Grohl's voice and screams still being awesome and impressive, even with 20 years of career with the Foo Fighters, and the band still sounding strong, hard and rocky, as the Foos typical sound. The sound changes in each song, because each one is recorded in one different studio in a different city, with the same producer (Butch Vig), but different taste of sound. 8 songs, 8 cities, 8 studios. Stronger in Chicago, Washington and L.A. songs and more quiet but still hard in Nashville, New Orleans, Seattle.
Lyrics — 10
All the lyrics are based in experiences lived by musicians and influent people and told to Grohl and the Foos in the interviews they did on the 8 cities they've visited for recording the album (Chicago, Washington D.C., Nashville, Austin, L.A., New Orleans, New York and Seattle), and they have some of the essence of each city, with references to musicians, history of the city, etc.
Maybe they had could had risked more, including in their songs the style of each city (Chicago's blues, Washington's go-go, Austin's boogie...) but as Grohl said in the third episode of the HBO series "Sonic Highways":
"The studio, the city, the history, the barbecue... They were wearing cowboy hats and playing leads that "sound like they came from 'The Good, the Bad, and the Ugly.' I need the Foos to strike a balance between being influenced by the city and staying true to who the band is."
Overall Impression — 9
The "hits" of this album (for me) are: "Something From Nothing," "Congregation," "Outside" and "Feast and the Famine," in that order. I'll talk about the best song in the album in my impression: "Something From Nothing" was released as the first single and first song of the album and reminds you the Dio's influence in Grohl's music style, with a little "reference" of "Holy Diver"'s riff in "Something From Nothing"'s verse, and it's the best song in the album, with a fiery and mind-blowing Grohl's scream at the end of the song: "ALL RISE!"
The "worst" song for me is "Subterranean," because it's not in the line of the other 7 songs of the record. The other 3 songs ("What Did I Do/ God as My Witness," who has a clear Queen's "opera rock" touch, "In the Clear," recorded with the Preservation Hall Band in New Orleans, and "I Am the River," song that closes the album with an explosive chorus) are pretty, pretty good too, so I give the record a overall impression of 9, because 10 is "Wasting Light."