most intense, me, definitely. I take a 10 second set between sets, normally. I also wear a hooded sweatshirt even in the middle of summer to avoid people talking to me. Just me, my mp3, and the weights. The owner is ALWAYS working out, though. He's a juicehead, I wouldn't call him intense though. He does a set then talks to people makes a phone call and repeat. He probably takes 10 minutes between sets.