Mods that do not rely on vanilla hairstyles should be fine. This mod is not compatible with mods like Diversity, Total Character Makeover or other mods that add NPCs or alter vanilla NPCs' faces. Anyway, here is an excerpt from the readme.
Of course there are still some issues and it would be great if there people would help me 'porting' some popular mods to make it compatible with this one if there is interests. Hi, I've been working on this mod for a while now and finally got it right.