I'm personally enjoying the siren route and am not particularly interested in the other routes and have to say my complaints are minimal. Fiona is a bit of a stumbling point on the siren route imo as while dominating as the one being penetrated is very much a thing, it's not something the scene tries for. Or if it does it does so very quietly with the last part of Ashe riding Fiona and Fiona getting plastered by Ashe and her own seed.
Rest of the sex stuff is pretty nice. I really like Lexi, the accidental lewds with mom and twin, could probably take or leave Zoey, Kate is hot but I'm not sure she's worth the extra angst Ashe is getting for doing Fiona's mom.
Also I have a bit of a theory on the blackmailer; she's got access to the house that Vanessa owns and Ashe was discovered during her fap session after helping Rachel move in. She might also be the person who hates Vanessa. Delilah is probably involved somehow but I doubt she's anything more than a cat's paw with little idea of what is going on. She just doesn't got the willfulness to try something like the blackmailing thing and I doubt she's got the opportunity or means. Even if Fiona's comment on her behavior in the update feels like some sort of hint.