Listened album by Jónsi from Wikimedia Foundation, Inc.
I have slowly been growing into Shiver. Brian Howe does not believe that the combination of A.G. Cook works:

Frequent Charli XCX producer A. G. Cook’s hectic Max Martin style is far from a natural fit for the dramatic, drawn-out singing Jónsi prefers, and without the dynamic presence or indestructible hooks of a pop artist, most of the alchemy he discovers with Cook is spinning gossamer into lead.

However, I wonder if it is a case where the music is different to what one has come to expect, in a similar manner to Taylor Swift’s work with Aaron Dessner. As Andrew Trendell suggests:

The record certainly boasts enough quirks and textures to keep you coming back to make new discoveries with each listen.