There's been a few '7 inch' club threads lately. Interestingly, it seems to be the 'cutoff' when going from average to big.
Based off my personal experience, it's big. Out of the 9 women I've slept with, I'd say about 7 of them commented on it, to varying degrees. A couple said it was big while sucking it, some have the 'you feel sooooooo big!' line when I penetrated them, one or two didn't really verbalize anything, but they push against my thigh to 'slow' me down because I was penetrating too deep, often with a 'you're hitting my cervix' line. One gf I recall always saying 'god I feel like you're up in my stomach'. That was a real ego boost lol.
I think we look at our dicks and they always look smaller to us from our perspective. Notice how when some guys here take upclose pics from the underside perspective and gives it that 'BIG' look, that's what your partner sees too. For women who don't comment, it's either they just aren't that verbal, or they may have seen a couple bigger, so yours doesn't stand out if they happens. But if a woman has been with someone bigger, that doesn't automatically equal that you= small.
Bottomline is, 7-8 inches is probably satisfactory to the largest amount of women. You'll likely be too big for some, big for others, just right for some, and even satisfactory if not 'entirely' ideal to a size queen, especially if you have good girth.