Sound, Versatility of use, Compactness, Design.
No
Excellent sound. The stage is perfectly developed and detached from the source. Dynamics are excellent. Detail is something that can be improved by arranging or mounting on racks. But even now it is at the level of a good HiFi.
Sound quality
No
Best digital sound quality, they are really bombastic, the sound is mesmerizing, for this volume the weight is huge.