I currently own a Swing Caddie 4 - Launch monitor. It’s a great product for its price point and provides all the data I require in addition to capturing all swing’s on video for analysis and review. I was able to compare my launch monitor against Track Man while my son had Cool Clubs Fitting at Grayhawk and found unit was extremely close to data from Track man other than “spin rate” that was off on occasion. Great device for both indoor and outdoor use and extremely usesful for “charting” all clubs in bag in addition to chip/flop shots around the green. With video can then draw “club plane lines” and see how grip, club face alignment is doing throughout the swing etc. The reviews I’ve read would suggest that the Garmin R10 might be more accurate for spin rates etc but this is what I’ve got and enjoying it to date. I can use as golf simulator with E6 software but have not tried this feature as of yet. Great device under $1000. Cheers