It's the size of a room, a library - a size to make itself felt, but not to dominate the square. It has a definite and interesting form, enough to draw the attention, but not enough to overwhelm the meaning.
I liked this review from the time of it's unveiling in 2000.
The artist did well, I think. My friend M, whose father is among those commemorated, thinks so too - which must be the best measure.