I love my new F8!
I've R11 irons and use(d) TaylorMade 3W and Driver previously, but reading about the tech and just looking at the pics (and the sale price!), I bought my F8 without even taking a practice swing. My friends thought I was crazy (and one even commented on how he thought I was a TaylorMade guy), but man do I love this club. I can't say my game has improved much since...but I think there are many other aspects to blame besides my driving. I do feel my driving has improved.
I lowered the loft to 9.5, but have left the weights the same to establish a "semi-baseline". I don't think I've a terrible slice, but my father does and I grew up golfing with him, so I think I've conditioned myself that having a slice is normal (it isn't). That being said, I've had my share of slices on mishits and hope the weights can help mitigate those. We shall see, still learning how to hit the thing, but it's a blast!