It took a couple hours on the range and 1 round of golf to get used to this club but I love it! Great look and feel. When hit solidly, it has a different sound while striking the ball. I was used to the titanium ping sound from my older Callaway driver however I quickly got used to the new sound. Also, I've always been a long(er) ball hitter and would hit the ball excessively hard landing in fairways about 40% of the time. With the SIM, now I have slowed down my swing and increased control and am hitting fairways about 60 - 70% of the time without losing distance. The SIM offers several adjustments that have helped me as well. I would recommend to anyone.