I used Golfshot pro for many years and was a great cheap addition to my game. Moved now to the shotscope H4, bit more of a faff when playing with tapping clubs and marking pins, but overall gives me a much better picture of when my game needs improvement and where my misses are and genuine distances on the course. Always thought my iron play was best part of my game but turns out approach is actually my worst! Takes me about 10 minutes after a round to review and amend before submitting but definitely worth it.