Not this Peach.
This sounded like an interesting beverage, so I gave it a try. Peach Coke looks like regular ol' Coca-Cola. The smell is pleasant - it gives off a strong hint of peachiness without being overpowering.
As for that really important little detail... the taste is surprisingly good! There's a strong peach flavor, but it doesn't go overboard. The peach flavor feels smooth and refreshing, a nice contrast with the sharpness of regular Coke.
Apparently Peach Coke is much more prevalent in Japan and especially China. (I'm not sure about other countries.) There's also been a Georgia Peach Coke that's made with cane sugar that comes in glass bottles - I think it's been discontinued. I have no way of knowing how similar (or dissimilar) these are to their Freestyle counterpart.
Nobody paid me to say this stuff. I'm not that famous. I promise.