I've been playing with LLs mods for years and for the first time something made me get out of my cave, say hello to the world and congratulate you for creating such a mod. Really, DOM got me.
So, thinking I can help you in some way, I'll leave here my experience and thoughts about this mod.
First of all, I installed on a existing save with hundreds of mods but not that many hours of gameplay, I had 7 slaves on PAHE and thank you for the installation instructions. All is working fine, played for some days now, got no crashes, no bizarre bugs, and a small list of strange behaviours that I am almost certain that is related to mod conflict after I installed DOM:
Some slaves on PAHE just don't follow me. They accept the order, turn their bodies on me but dont walk at all. First I thought it was because of pre-existing save, but happened to new slaves too, and not to all of them. Must be something im doing, don't know what. Since I didn't see anyone else saying that they had this behavior, it's probably on my side..
Got that "no name" bug, in my mod list I have MiasLair and the PAHE patch, so maybe there is some other mod conflict? Anyway, just going to the slave page on PAHE menu and renaming them solves the problem. I'll see more in depth if I did everything right with the patch too.
HSH training system appear to not be working anymore, thats my priority today. Will try to reset/reinstall to see if I can get it back to work. Usually I get slaves from bandit camps, and more often than not they are resistant to pain/sex and hard to train. Would be hard to train them all alone.
Since I am not really testing the mod, but playing as if is already completed and stable (living dangerously =p), i'm not forcing bugs to happen or trying to understand why something specific had happened. And also, since i'm playing and enjoying the mod (PAHE looks more complete now), I have some ideas for the future of the mod:
Tamriel is a land of magic. While all those personality and emotional traits gives NPCs a new light and I liked it, I like magic too much and would love to see some more magical ways to train slaves. In practice, things like aphrodisiac or arousal enhancing spells that alters how sex training works, Illusion spells that temporarily changes moods, or even enchanted itens that messes with those traits like slave never get angry but lose respect for you using such cheap tricks, a punishment device that shocks the user, or something that makes the npc thinks you care about them by giving a life enhancing item to a Frail actor.
The same idea is true on non magical items, as pointed out before, using food to make a better mood as in MiasLair, or more results with different cloths (better armor for combat slaves, rich clothes, or giving some pricey item could be seen as a token of confidence) as well as removing those "rewards" as a form of punishment.
The command that orders the slave do something for you could be used for more things, ordering a slave to use a HSH torture device is one thing, but ordering them to some other vanilla things like sleep brings some interesting thoughts, in this case the npc could see it as a reward, even greater if its the HSH marked bed (after all, you're gonna sleep in the Master's bed, suck up that, bitches xD) (or it isn't how it works..? Have some doubts now..)
A random thought that passed in my head when I saw that you can train a slave resistance to Humiliation was that there is those who like to see the slave imitating a animal like a cat, dog, pig... Just don't know how do-able it is.
Saw that you are looking into more idles based on moods, I don't have many ideas neighter animation suggestions but here are my thougths: A in love actor could automatically follow the master without asking (or make a sensual pose/walking if in love and aroused).
Vampires need to eat too. Having a vampire slave may not be good on the others slaves... Never played with werewolves to know how they would interact, but thinking about it, ones race could matter on slave on slave interactions.
And that would be it. I hope all this writing can help you somehow. Thanks for all the work done so far!
Sorry for any grammar mistakes, english is not my native language.