Absolutely gorgeous, love the combo mid-century and modern minimalist vibe you have, great windows and roof line too.
Tough decision, I find the shape fascinating and it would look good in your space, however, it's inflexible (once you drill holes and put it up you're stuck with it more or less) and your current system is more amenable to being moved/changed if you ever want to rearrange the furniture. Plus the Shape is expensive. I'd say you'd get better audio performance by adding a sub.
Thanks Jeff. IIRC, you're in SoCal, so you probably know about the Eichler homes
My B&O Icons: