There really is a Cirque du Soleil show for every taste in Las Vegas. Ka is the most narrative and story-driven of all the shows. It is not the spectacle of "O" nor the whimsy of Mystere nor the steaminess of Zumanity. It certainly is not like the musical tribute to the Beatles that "Love" is.
Ka is the story of two Imperial twins separated by treachery, who come of age in their journey to reunite and to restore their legacy. It's the easiest and most focused of the Cirque plots to follow. There is a martial theme to the story and the stunts and dance are influenced by Wu Shu. As a companion put it, "This is Cirque du Soleil for boys". I couldn't agree more.
As with all the LV shows, there really isn't a bad seat in the theatre and sitting back a bit actually helps with some of the scale of the stunts and effects.
All and all, this is my favourite of the Cirque shows in Vegas. It's compact plot is not as reliant on special effects and it moves along nicely. It's old enough that discount tickets are regularly available and on that basis, I see it every time I run through town.