Some of the new flavours are a bit sickly. KitKat Chunky is revoltingly sickly. I tried the balls in France a couple of years ago and didn't think much of them.
The Caramac one is OK and the Dark one is very nice.
Pedant's corner: Some, yes. All, no.
I take your point on the KK balls, a few work colleagues said the same
thing as their expectation upon seeing them was of Maltesers.
IMO the fruity ones are poor and I admit that the caramel one is quite sickening after 5!