As an amateur weekend player, I am generally satisfied with the Baseline Vision. It's really helpful especially for “hitting deep” practice. I'm looking forward to the future improvements on “Play Match” feature, like automatic scoring, etc. Here's a few things on the Baseline that would be nice to get improved: (1) Vast majority of tennis court surface in Japan is “sand filled artificial grass”, a.k.a. “Omni court”. Sometimes it looks ambiguous for the Baseline Vision to determine if the ball is in or out. It would be nice if the accuracy on sand filled artificial grass courts improved. (2) It would be super nice to have the option to switch Baseline Vision's voice between several options. Most Japanese people don't like to stand out :-), and they would prefer another voice of much softer version. Keep up the further development. To all the developers and engineers, thank you so much.