Bought them for the price. Solid string that really works on slices and volleys giving the ball some nice movement. Keeps tension pretty well (strung at 56 for a wilson six one 95). Groundstrokes feel crisp and have plenty of power, never need to straighten them out in between points. However they can feel rigid at times from the baseline and there isn't a whole lot of comfort. So far, I've gotten a solid 16 hours out of them and they're not even close to showing signs of deterioration.