The soundstage it's not the typical big and diffuse, it's more realistic in the way that the height, wide and depth give the sensation of being equal.
It's kind of a bit narrow too, it's not super wide.
I liked a lot more the dynamics from the R series towers instead vs R3/R300.., also the soundstage seems to be a bit bigger
But if you wanna a lot of dynamics you can always add 2x subs, subs are going to reproduce deeper bass than these mid size floorstanding.
In my small room the In-room EQ + KEF R7s are fine, but in a normal place i'll add 2 subs and cross them at 60-80hz.