This one of the best hard court balls that is currently being made. I used to like Dunlop Grand Prix but started to have issues with quality awhile back. The Penn Marathons last longer, have less defects (rounder and better seems), and are reasonably priced compared to other top-tier balls. I use these for both practice and game balls.
This is the best tennis ball out there. Far superior to regular tennis balls. AND Midwest gives great service, too.
Have not used yet. Was delivered on time.
never found a ball with a more consistent feel and bounce
Love this ball... Seems to be just a millimeter larger than all the other Championship balls. The bounce is always perfect and the color a bit brighter...
since those balls came out about 15 months ago, I'm just playing only with it. Durable. not to heavy and good bounce... just perfect for me
best ball out there. great durability, great visibility with brighter color.