I love this one and the cats do too.  It is medium sized in comparison to the last one (the figure 8 looking one) I had so it doesn't take up as much real estate in the living room.  The muted gray color is a perfect neutral for modern decor.  The cats can utilize all three sides and the inside as well.  I have one cat that likes to sleep inside the triangle... at least lay his head in there as I am not sure his entire body would fit ias he is pleasingly plump.  As with all cardboard scratchers they do shed with use, but I have found this brand to have the most durable cardboard well worth your hard earned dollar.