Back to technical subject, I think omni and concentric twitters plus paper woofer produce most pleasant sounds specially concentric drivers for female vocal! There is a down side of paper woofers! Distortion in higher volume and that’s the reason metallic ones( mostly aluminum) are popular! To my ears, metallic woofer causes fatigue and can’t hear to them for long time same as horn twitters ! Other problem with metallic woofers is you need a certain level of volume to see them and in lower volume don’t work very well!
REMINDER : this is my taste and based on my experience so don’t take it against any model or manufacturer!
about size and appearances! Some of you mentioned in same series , little brother works better in smaller room but with smaller speakers, you need to sit on sweet spot to get the best ! And plus the sound weight from bigger ones are nicer! Appearance, anything close the Sonus Faber, you must see them by yourself, so beutful and charming (>