It's a classic for a reason!
I'm lucky enough to fit into the larger end of the regular sizing, and the smaller end of the curve sizing, so I have worn the Madame X in both, I love the curve because it's more substantial and the thicker band is more comfortable and has a smoothing effect. It's so comfy I can wear it for 10+ hours and forget I'm wearing it. Also, the construction is exquisite!
Rated 2 on a scale of minus 2 to 2, where minus 2 is Poor, 0 is Good and 2 is Excellent
Rated 0 on a scale of minus 2 to 2, where minus 2 is Small, 0 is Just Right and 2 is Large