USA 
There are lots of good things I could talk about.
But the two areas I’ve focused on are, 1) it has taught me the proper pause at the top of the swing and 2) squaring up the club face at impact. Before using I didn’t have enough pause at the top and everything was flairing to the right. After using for a few weeks my golf swing has improved and has taken my index diwn from 7.6 to 6.3. Great job Lag Golf!
Simply the best swing trainer I’ve used. It forces me into the correct takeaway and lag, with feedback from hitting actual balls at the range. Plus, it was available in left hand, +1 length, and mid-size grip…like my clubs.