OK I've had a listen.
The whole vibe is nothing has changed in the world of ABBA except they got older, they bought a new synth and are slightly sassier in their golden years.
Obviously I love it, initially I'd probably compare it to The Album, a kind of mish mash of styles, trying to balance schlager, disco, soft rock, glam, country etc... the Irish number is probably the only genre that's new to them.
It absolutely works, it will satisfy the hardened fans and the casuals in equal measure. It's not groundbreaking, but we never expected or wanted that.