Well, things on Jaktens Tid are quite unclear, but to me it sounds like space-polka-metal, and that's pretty cool.
And the keyboards are cool. I personally think a production is to make the public have the greatest possibility to be into the songs, not necessarily to make it sound like what is considered as the standard or something. And when the beat starts in the song Jaktens Tid, I go insane.
So for me, it means the production is not a handicap, so the production is good.
For example, Twilight of the ThunderGod by Amon Amarth, if you listen to only one song it totally rocks but if you listen to the whole album after the 3rd song, well I get bored. So maybe Amon Amarth is more of a "single's" band?
But I am more of an album listener then a random playlist listener.
For an amazing production I would also consider Dethklok.