Complete waste of money. Review the sub but basically everyone who has switched never turns on TGC anymore. It’s a 6 year old software now with no future updates.  
Think of GSPro as a yearly access fee to hundreds of courses, practice facilities and online tournaments. If you look at it monthly it’s like $21 which is 1-2 buckets of range balls most places. You will easily save that by having your own set up.