I'm using these on my Roland TD-25 e-kit. I like the extra 1/2" for added reach, and the shorter taper which gives a heavier feel to the stick and feels like there's a touch more power behind each stroke. However, they are not particularly heavy, so are still feel nice and manageable in the hand.
Vater's 5A size sits nicely between Vic Firth's 5A and 5B sizes, and is ideal for those who find VF 5A's too thin and their 5B's too thick.
I've not used these an an acoustic kit, so can't say how much abuse they will take, but on an e-kit I think a pair will last for ever!