Yep, that's about it!
Many hi-fi products can sound extremely exciting at first listen, charging through music and really punching out the tunes. However, when you get to a song or a classical piece that requires a more measured approach - the delicate intonation in voices, say, or the pluck of strings or gentle percussion - some products can lose out; they fail to offer the necessary finesse to do justice to that track.
A true all-rounder, however, can take the rough with the smooth; the raw and the delicate, and present them with equal ability.