I've honestly avoided them, the different perspective doesn't really work for me in this type of fiction. Oddly enough I can read and watch fem protagonist for anything else just not porn games lol.
I would say anytime you can fit the group sex + incest tags that will get my attention. Impreg and harem too. More generically I look to see if there are good renders and a setting that seem interesting. After that, as long as its playable/readable its usually fine
Love this game, think the game could benefit from another character in the schoolgirl to sister age. Maybe the dev has another game planned after this one?
Yeah these are my typical reasons as well. On bad story, I would also like to add abandoning love interests. I never like it where some girls just inexplicably disappear
Its too bad really that there aren't NSFW games that are made by studios that can commit to making solid games with a start climax and finish. Instead there are a bunch of crappy games that will get maybe 10 people on patreon or Sstar, fizzle out and die.
Some are ok, though if you have to keep going through them they can be tiresome fast. Occasionally one makes the game a little bit better and helps keep pacing.