Johnny's gives Esterina a glowing review. I really liked White Cherry, and they replaced it with Esterina.
http://www.johnnyseeds.com/p-9907-esterina.aspx
Massive yields on big clusters. Flavor is very sweet, but well balanced with a tangy kick. Smooth, even texture adds to their exceptional snacking quality. Resisted cracking very well in a wet trial season here on the Albion research farm. Open plant for easy access and good airflow. Substantially better flavor, yield, and appearance than White Cherry, which it replaced. High resistance to verticillium wilt.