Pretty bad, honestly.
As a draft fan in general, I'm probably okay. Had some good picks and bad picks throughout the years. I do think I'm learning and getting better when evaluating talent, but I've also become increasingly convinced that personality and character are the best predictors of success. Fans like me aren't really privy to that information.
As a Celtic fan, I have a pretty nasty habit of selling myself on any pick Ainge makes. I'm all-in as soon as he makes a pick. If I don't know them that well, I'm looking at stats and highlights of those players and dreaming about how they fit on this team. I'm also talking myself out of whatever guys I wanted at that draft spot for whatever reasons I can come up with. I've got pretty bad green-tinted lenses.