They are different. The ACES skin tone rendering, when applied to ARRI camera output, tends to be "tawny", that is to say, for ARRI camera output ACES will render skin a bit more yellow. Whether this is a welcome or unwelcome change will depend on the subject and the context.
In the crop from a winter scene below, the ARRI rendering on the left is both less contrasty and less saturated. In the ACES rendering on the right, contrast and saturation are increased, and the skin tone shifts to...