It works pretty well, but it would be nice if they could integrate the Apple Watch and LiDAR that are part of the iPhone Pro line. The Apple Watch is a point of contact with a built-in accelerometer, which is closer to the bar and the LiDAR to get actual distance and more accurate reading of velocity with the camera. Metric does an okay job, but the measurements are a bit off. The integration of allowing coaches to see their athletes' data is incredible, but with other devices, it is Standard practice. I can put a device that attaches to the barbell for 500 dollars, comes with a companion app, and it’s way more accurate. The downside of those devices is that they require an iPad and a mat for the laser to reflect on. I also can’t have the athlete use it at their will. They need to either own the device or have it on hand, But if you think about it, an iPhone Pro 12 can be found for less than that and an Apple Watch. There are over devices that run a couple of grand that, again, if you think about it, between your newest watch and iPhone, you're already in about that price point. It’s a great concept I hope they can expand on the accuracy and use available hardware instead of focusing on stop gap measures like giving me a notification that “I’m improving”.