Really go for it man. I wasnt into pixel art before as well but I really got the 'hang of it' so to say after I played HC1 (at that time). The story, scenes and relationships are really what make a good corruption and NTR game. At least that was what this games made me understand. Of course there is nothing to say against some good CGs, absolutely not - but it happens to be that you just dont really/always need them.Can I see a show of hands for people who are not into pixel art but into NTR? How is the game for you? I never played NTRPG or any other pixel art only games, but this one keeps coming up as in NTR recommendations. I getting curious.
So I would really recommend you to give it a try - if you really are into NTR/corruption and good/detailed story telling. The development of the characters and relationships takes time but you will be rewarded for it.
There is only the portraits (which come with many variations) and the banner which are based on CGs. But the sfx/music and sex sounds which are voice acted are really nice, and the pixel art itself is done quite nicely with a lot of different poses and so on...Btw, is there any plans to add CG at at some? I notice they are using custom portraits.
Enjoy!