I have personally been training with the Newgy Robo-Pong 2050 for the last 4 years. https://www.youtube.com/watch?v=k2l8t3XDuKo I use the robot a couple hours each day to keep my game sharp. Here are some of the features that I really appreciate about the 2050:
1. The setup for my robot only takes one minute. It is always ready for a quick training session at any time of the day or night.