Harem Hotel is first an foremost a visual novel. But there were quite a lot of sex scenes added. Specifically, 15 unique sex scenes were added which does not included outfits. Compared to v13 which had 10 unique sex scenes and no new outfits.This last update was only like 3 sex scenes (i think) and two of them are frontloaded, hard to fap to this (specifically this update, on love route for elves)
Love route for the elves is the story route. Slave route exists if you only care about their sex.