The artwork is just really good, the writing perfunctory but concise, easily 5 stars if you want a vanilla HRPG with unique, sexy animated scenes and can stomach a gender-bending sequence.
If, though, you like me downloaded it for the gender-bending sequence you may be disappointed. it was a satisfactory section of the game but is brief, making up a minority of the content and not focused on in the writing. There's no crisis of masculinity, the men are not compared to your old male body, you just go from attractive guy to hot slut for a little while and sex is just there and not interrogated.
My specific idiosyncratic complaints aside the game is fairly unique and has a surprising amount of vanilla content, easily 5 stars for a vanilla fan.