Needs work, but better than spotting scope or walking.
It works, the camera is good, the transmission is real good, but the program (app) needs a lot of work. I can't get it to measure a group. The instruction sheet, for the app, is kind of a waste of ink & paper. How about maybe a video on how to work the app, and a big redo. (Hint, hint, check out TargetVision's app.)
Fix the app and you've got 5 stars from me.