Speaking as a woman, the Prince Roger series is one of my favorites, and one that I reread every few years. As a somewhat-liberal, I enjoy the perversity of the Saints being ecologists to the ultra-extreme with all the tunnel vision that any extreme POV brings with it.
But the Saints are such peripheral characters that they're just almost a running joke for most of the series. I think that was how Weber allowed Ringo to get it out of his system,

because the rest of the story doesn't contain his usual comic-book females and conservative rants. The complaints of the soldiers are universal ones, because no matter what type of administration is in power there are always people in it who are going to cut corners for profit and in turn get people killed by their actions.
I really enjoyed all the members of the Bronze Battalion and how their personalities evolved over the course of the books; I felt bad when characters were killed off. What I really liked was how the Mardukans became individuals in their own right, to the point that for me at least I tended to forget that their physical appearance was "alien".
The series is just such a good mix of adventure, horror, battles, intrigue, humor and yes, romance. It is a good, fun read.