I almost always need a WALKTHROUGH. My favorite WK is when the clever Dev builds it into the VN.
I hate playing mini-games, or keeping track of any kind of possessions or money or health, etc.
The more options I have the more I tend to like games. They don't "require" walkthroughs, but they are sure appreciated. Especially the more complex ones.
It depends. I think when people forget that porn games are meant to have porn, it gets messy. If you wanna do a real game, do a real game. Too much sweats is bad
Don't like having a walkthrough in the game. But I do like info when certain choices are locked because X or a path gets enabled if I choose Y. That's plenty Imho.