Morning,
I may be a little 'after the fact' on this but I went to ABBA Voyage on Saturday night.
We had seats......didn't stop us getting up and dancing, though. :o)
If you book the dance floor, it is very crowded and you will have to stand, and dance, for 90 minutes (or more depending how early you get there) as well as holding your drink, bags and merchandise.
It is utterly stunning and I am already trying to persuade Mrs JtH that we really need to go again.....