Every women who's experienced my erect cock has made some kind of comment about it's size. While those tend to be things like "big', "huge" also mentioned is how thick it is. My 6 inch girth is in the 98-99th percentile, so it always got noticed when getting sexual with a woman. Many also mentioned they love the feeling of being "full" and getting "filled up' when I'm in them. That is definitely more the result of girth vs length.
I'm fortunate enough to have above average length (7") as well, so many women have called my penis "perfect" as it's the right combination of length and girth (volume!) that fills them up and allows for significant in-and-out action while still being inside them.