The unfortunate problem with the art style is that it is perfect for horror, and I really mean that. It's like how Scott Cawthon's 3D art always seemed to turn out really creepy, so eventually he embraced that, and what resulted was a runaway success. Many of the darker moments in Superhuman send chills down my spine from the art alone. That's a powerful strength this art brings to the table.
However, the very qualities which make it work so well for horror also make it completely unsuited for lewd scenes. Many of the characters that are supposed to be very attractive plot-wise look disturbing at the best of times, yet characters react as though they're supposed to be good-looking. For lewd scenes, I often find myself mostly ignoring the given art and just reading the text while using my imagination (an often forgotten skill in these modern times).