The NTR genre is not for the weak of heart, though that's really part of the point. It's supposed to be uncomfortable at some level.
And even at that, I still have mixed feelings about how absurdly dark it was. I would have liked FLL more if it was a little more light-hearted (it can be done), like Hakueki's Black Time (i.e. 'sup Mugi, 'sup Yui), even if it's arguably even less realistic.
I can deal with the shameless promiscuity and raunchy exhibitionism as an opulent sexual fantasy, but my non-reptilian brain intervenes with somewhat of a nullifying effect on my ability to enjoy the Requiem for a Dream-type stuff that Da Hootch revels in.