Haven't tried these specific ones. All the metal ferrules I've tried on maple cues tend to have a very harsh hit. Even snooker cues made out of maple, I prefer with fiber ferrules rather than metal. Ash cues have a more soft, subdued hit anyway, so the traditional brass ferrules balance them out nicely (IMO).
I've tried a pool cue with some sort of "steel" ferrule and it was awful. Large deflection, very hard hit and weird playing characteristics. Some may enjoy such a hit, but I don't. For me to like a metal ferrule, it had better be VERY thin and VERY short, I mean no longer than the tip!