Annihilations approach question

Are they as good as they seem to be?

Im playing RF chieftan build and it is my second season so knowledge is small.

It gives the buff adrenaline all the time which when i google it, it gives 100% dmg, 25% movement speed, 10% dmg reduction.

Is that as good as it sounds or is there a catch since some builds go for other boots?

100% dmg sounds just crazy but it might scale in some way i dont know about, but assuming it literally gives me double the dmg i have now seems crazy to me.