Cyclone is very good for tension maintenance and this gives increased string life and thus better value for money. This increases the number of playing hours before you need to restring your racket again.
I string my own racquets and I prefer co-poly's at very low tension. At 40 lbs on my HEAD Graphene racquets, the Volkl Cyclone 17 is a dream. So soft on the arm, lovely pocketing and control, and great power, but not too much power. And the SPIN! Wow. This and HEAD Lynx are my two favorite strings.
Best shaped poly I tried and I've tried many. Tourna Big Hitter black 7, Head Sonic, Pro Edge, Gamma Zo Twist, Wilson Spin Cycle, Genesis Hexonic, and Prosupex Blue Gear.They are all good strings but the Volkl Cyclone stands above them all.