Like any stock design, it depends on the particular stock's dimensions and how well it fits you. I have one with a hog's back stock at the moment which fits me well. I have a couple of other Euro rifles with low combs, but with less curve, and they do me fine too, but I'm used to holding my head upright, not dropping it onto the comb, and having whatever part of my face meets the comb serve as "cheek weld". As long as the butt meets my shoulder and the scope ends up in front of my eye I'm good to go, even if it is actually more my jaw than my cheek in contact with the comb.
I have used others with hog's back stocks which did okay too, but some are bloody awful. One I remember without fondness had a hog's back comb which was far too narrow, and a narrow steel buttplate, and it knocked me around more than it should.
