I actually like the Vio very much, but some things in your floor plan are a bit problematic. The fireplace is very close to the dining table, since you can't place the dining table that far into the conservatory. You should reconsider the kitchen layout, the sink is too close to the stovetop. You shouldn't do without a second shower bathroom, with two children it's otherwise very stressful. Have you looked at the slightly larger Vio in Köln-Frechen? There, the shower in the ground floor bathroom is integrated further down, you could possibly do without the space in your utility room. Your dressing room doesn't really make much sense, it takes up space and there is no natural light. How is the shower going to be designed, with glass doors?
Best regards Sabine