I'm about 80 kg, so nothing extreme. I think the brakes worked as intended, my expectations where just higher I guess. I had my lbs swap the pads and adjust them a couple of times, but they kept feeling underpowered.
The feel and sound of rim brakes just appeal a lot more to me, they appear smoother and honestly my regular V-brake setup on my commuter has so much better modulation, and power, than the Spyres on the Diverge, so that's why I'm going to give mini v's a shot with the Macho Man. If that doesnt work out for some reason, I know cantis can be great too, they're just a pain in the ass to set up.