I use the Vista for my fronts, Mosaics for my rears and an Abyss sub. I find that if you are able to listen in the "sweet spot" between the two front speakers you won't miss the center, especially one that doesn't perform to the same level as your main speakers. This "sweet spot" will vary in size dependant on the type of speaker, distance, etc.. If you are listening from a position greatly off center then a center channel is the only way to go. Remember the center channel was created to keep the dialogue coming from the screen in a large movie theater. At home you can place yourself in the ideal listening position so the phantom center becomes a viable alternative.