As much as Enterprise is not being used here, even in the novels for that series, the Daedalus was reduced to a technological test bed that was never meant to see full production.
TNG's only reference to the class is when the Federation finally managed to retire it in favour of better ships classes.
So to be blunt, the Daedalus was kicked around verbally everytime it was even mentioned. I think that really says all there needs to be said about the class.
I've always enjoyed the fandoms interpretations of the class and variations on it far more.
And as for the size comparison above, the Hercules is a little larger than I had thought at first, but considering how much thinner she is and the length of the mechanical drive sections, it makes more sense.