Making this the one and only Elden Ring Shadows of the Erd Tree Major Thread. Listing some reviews here that I personally liked:

GAMESPOT
IGN
Skill Up
Writing On Games
Washington Post
eXputer
"It's an achievement in world-building creativity that stands head-and-shoulders above the rest, with the closest comparison I can make being the late, great Kentaro Miura's Berserk. Elden Ring: Shadow of the Erdtree is From Software's victory lap, an unmissable tour de force that is every bit as brilliant as the original game." - Gamespot
"It is the grandest conclusion to what many believe the grandest videogame of 2020s" - Wahsington Post

" Everything I loved about the original has been condensed into an incredibly tight package – one that’s the size of many standalone games all on its own, and can only be considered “small” in comparison to the absolutely massive world of Elden Ring itself. " - IGN
" Shadows of the Erd Tree is the perfect curtain-call to one of the greatest video games ever made" - Skill Up
"Elden Ring’s Shadow of the Erdtree DLC brought back the joy and sense of curiosity I had when I stepped in The Lands Between for the first time" - eXputer

GAMESPOT
IGN
Skill Up
Writing On Games
Washington Post
eXputer
"It's an achievement in world-building creativity that stands head-and-shoulders above the rest, with the closest comparison I can make being the late, great Kentaro Miura's Berserk. Elden Ring: Shadow of the Erdtree is From Software's victory lap, an unmissable tour de force that is every bit as brilliant as the original game." - Gamespot
"It is the grandest conclusion to what many believe the grandest videogame of 2020s" - Wahsington Post

" Everything I loved about the original has been condensed into an incredibly tight package – one that’s the size of many standalone games all on its own, and can only be considered “small” in comparison to the absolutely massive world of Elden Ring itself. " - IGN
" Shadows of the Erd Tree is the perfect curtain-call to one of the greatest video games ever made" - Skill Up
"Elden Ring’s Shadow of the Erdtree DLC brought back the joy and sense of curiosity I had when I stepped in The Lands Between for the first time" - eXputer