Fjn,
Not akg, but I was at the show opening night in Minny, so I'll offer my take. I thought that it was a great show, but very different from last year's set. Christine got a third of the songs this time and the net effect was a show that was a bit less rockin' (IMO), but still very high energy. Mac showed more of its pop side this time around as some of last year's Lindsey Buckingham rock songs were traded away for Christine's pop hits. OTOH, I thought that both McVie and Nicks were in peak form.
I'm a Buckingham first guy, so I preferred last year's set, but - for me - this one was still better than 99% of the shows I've seen this year.