it really improves your spin and power
This is my favorite poly string. Great feel, decent durability, and pop when you need it. I now use it for my main strings only. I use Isospeed Black Fire for Crosses because I get less of the string cutting into itself (Cyclone is a shaped string, Black Fire is round). Great performance and great price compared to other comparable poly strings, such as Luxilon and RPM Blast.
Very nice string. I can put good pace on the ball and it also provides a nice feel when putting topspin on a lob or forehand. Recommended by a friend who has his Volkl Organix 3 strung with it. I also have the same racquet.