It's too bad that oni decided to make the game wider, instead of deeper. It gets old fast and just kind of railroads you into harem. TNH is better in this regard, I think, since there is an actual story and a ton of interactions with girls. A wide selection is nice, don't get me wrong, but I would have settled for 3 girls (Rogue, Laura and someone else, maybe Kitty or Wanda).
Also, Oni should work on his art. Front facing girls look good, but when they face sideways the art just looks meh at best. Wanda is probably the worst example of this - I just can't look at her face when doing doggy, it looks bad. BJ faces also look inconsistent, but that is tolerable.