Summary:
I added a subwoofer (Velodyne 12 inches), then played with different speaker cables and interconnects and once tuned I didn't need the sub anymore !
But what a great sound ! A speaker which looks as good as it sounds fantastic.
Not for big rooms or add a sub.

Strengths:
Image, detail and soundstaging are very very good. Once there is music, you don't see these speakers anymore - you are in the audio hall, music chamber or whatever. My friends don't believe the sound comes from such tiny speakers.
Excellent build quality, with matched stands.

Weaknesses:
at 83 Db sensitivity, my 24 Watts Unison Research Simply four cannot reach high volumes.