Only problem is birth weight and shape at birth.
I know of a few shorthorn folks that ran into issues with birth weight because of both sides of the pedigree (shorthorn are not known for calving ease.... don't shoot the messenger)
He is very useful if you are breeding an extreme calving ease red angus females. Just watch the shape.
Full Throttle (Red Angus) has similar issues, but again, definitely throws eye appealing calves.