It's not grindy, and what you need to do next is normally made very clear.How good is the sex scenes. Also how is the sandbox? Grindy? and is it easy to follow what to do next?
Whilst the sex scenes are good, I'd say that the game's greatest strengths are the characterisation, plot and dialogue. Oh, and two or three of the girls are very hot. Also the hero manages to be neither a wimp nor a bully, which is a balance that many games fail to achieve.