Im gonna be quick.
Build = Tank (OMG I LOVE ALUMINUM ENCLOSURE)
Bass = Phenomenal, super clean and super deep for such size
Mids and highs = very clean and transparent.
Imaging and soundstage = as good as it gets.
If your main goal is to produce music or listen for pleasure these will sound amazing in almost all scenarios be it nearfield, as pc speakers, in a small or medium room.
Only on the largest rooms Sub could be needed.
Downsides: Price.