Now with some time with the KV4 are you still satisfied? I have KG 5.5s as well and am considering a center channel KV2, KV3 or KV4.
I currently have a KG 2.5V center but set up for 5.1 yet. Setting up new 5.1 surround in basement and enjoy the KG 5.5 so much I want to incorporate them in new room.