I purchased the Taylormade Superfast 2.0 TP and am still blown away by the results much to the same magnitude as I was blown away when Callaway first came out with the Great Big Bertha and I closeted my Orlamar back in the late 90's.
I am 5' 8" 190lbs with a natural 110-115 mph swing speed that was forcefully slowed down to 95-100 mph by my old Callaway FT-iZ with a "stiff" shaft that hit the ball 275-280 on a good drive. I went to golfsmith looking to modify that club with a stiffer shaft. After looking at shafts that matched my swing speed I realized that the only cost effective way to fix this was to trade in my old club for a new one. The friendly man at golfsmith handed me a barely used SF2.0TP. On the simulator I was hitting it 300 consistently, with one that was 364, but at the time I was sure that this was just some computer that was giving me fake data to sell me the club. However, it felt a ton better than my old driver so I made the trade plus $100 and went straight to the range.
With my FT-iZ and GBB I played a draw with an occasional snap hook. When I hit this club it either went dead straight, or cut. I tried to draw it and successfully did a few times, but found that the cut shot it wanted to play was alot more consistant than any forced draw that I hit.
My first time to hit it on the course was playing 18 holes yesterday in a work tournament of 36 teams. I started off trying to hit my draw with little success but after the first five driving holes I gave in and played a cut down the left hand side of the fairway. From that point on, my day got better and better. The last three holes I played, I nearly drove a 360 yard green on a dogleg right hole, and the last hole was the long drive hole playing uphill into the wind where I won the competition with a 320 yard shot.
Last month I was playing a Callaway FT-iZ, hitting the ball 275-280... maybe an occasional 300 once a round if the wind blew correctly. I went from this to winning long drive competitions and hitting the occasional ball nearly 350 just by purchasing a driver. I gained a consistent 40-50 yards on my drives. The shot shape is not my favorite but it is cosistent and predictable. The shaft is perfect for my swing speed and the club is a great feel to hit. My next driver (if there is a next driver) will definately be a taylormade.