Just my humble opinion:
if girls keep having no reviews, it is likely that dudes think they are under expectations. However, having reviews (especially good ones) does not gurantee anything as well. as different people have different strokes, where YMMV happens from there...Therefore, that means, you will have to stick to the dudes who share the similar tastes towards women with you, otherwise you may have a different experience.
For Mikaki's case, either you take a plunge, or you better to give up seeing her...