I came across some information on the Dali Rubikore (Erin review), and based on that, which I should not do given the price difference but I will anyway....
The ribbon tweeter is likely elevated, and I would personally high shelf it down. If my room were less reflective I might not, given aging ears. The vertical dispersion is likely not great. So if you had stacked seating, they would be a bad idea. If you have one level of seating, and can set them up so the listener is below the ribbon tweeter, then I think they might be a good fit for your room.