I think I managed to skip the entire BDSM section as my personality simply doesn't fit Wooooo. I do like it when Authors cater for different preferences without locking them in (see Harem Hotel unfortunately).
There are a few instances where better UI could have been used but I can't remember quite where and they're so infrequent it simply doesn't bother me.
I found it a little boring the first play through but that's because naturally I'm quite prudish and reserved (yet here I'm playing these games -_-;;; dun judge me). That was because half the story was wiped out, however the second play through I was a little more adventurous and while I haven't finished it yet I am constantly astounded by the animation, the story and god those girls are heavenly. I've seen a good majority of these girls elsewhere but you do this with such finesse. I have been rendered motionless more times than I care to admit just staring at the visions you have created.
Particularly on the night of the opera, that dress and the makeup/hair combination with the fantastic posing? Colour me distinctly impressed. I also like how you touch upon the various topics throughout the story, most feel very natural and believable as do the relationship development (well, there are a few moments where I have to suspend disbelief but after those hiccups the rest of the story follows naturally and otherwise realistically).
This is by far one of the... look I rate Man of the House pretty highly, notably for its more game-like interface and freeform. I also kinda rated DMD, Mythic Manor and similar but this, this goes to the top. It's the best. It might not be perfect in some elements where others are better, but there's honestly no question I've enjoyed this one more than most.
I would like to leave constructive criticism though and you're making this very difficult. So my advice on how to improve this is: More. I understand that the animation is difficult and time consuming. It's certainly not lacking but there could be more and it could be smoother (more frames I suspect). But yeah, more content.
Consider this a standing ovation.