Sex, sex, and more sex. You'd think that'd be a strength for a porn game, but WaifuHub somehow manages to make it a weakness.
The game consists of eight scenes with eight different characters. You are a porn producer interviewing these characters for your up-and-coming porn site, WaifuHub. That is the extent of the game's plot and variety. Every character save one is there for the same reason, every character has an identical body type, and every character has around the same level of interest and experience. Somehow. It's less like eight scenes with eight characters, and more like one scene with one character that has eight skins.
That being said, the game never pretends otherwise. It's pretty self-aware that the plot is a pretense to have sex with some popular fictional characters, and never pretends that anything happening is supposed to make sense. The scenes themselves have about a dozen or two positions per character, although the faces they make can get pretty ridiculous.
There is currently no progression and no actual gameplay. Choosing a character more than once simply plays the scene again. Clearing all scenes took me about an hour or two, so it's not a huge time sink either way.
The porn is pretty good if you like the body type, and the game isn't painful to get through, but there's really not much here to enjoy.