I find it's all over the shop depending on what models you use. A good example is that few models know what 'Capris' are and so render the girls wearing them as bottomless.
I also find most models will spit the dummy beyond a certain level of prompt complexity, giving you monsters or splatterings of colour only Jackson Pollock would see as women.
I've now tried to customise AnotherMike's GenAI to several different models. StableYogi ones tend to give the best sex positions (I'd recommend realismByStableYogi_ponyV3VAE and his Porncraft models) but tend to fall short on clothes, appearances of women and backgrounds. Cyberrealistic ones are fairly good all round but are more likely to generate monsters. Both have their own sets of positive and negative prompt files (textual inversions) but they don't fix everything.
ADetailer can fix a few minor glitches (e.g. hands) and can help a lot with faces - especially when they're upside down in the piledriver position - but I'm finding it more than doubles image generation time, so when actually playing the game instead of messing with images you end up clicking through most of them and missing it. Ten seconds per image is about as far as my patience stretches and I like to keep it close to five seconds.
When I get a bit of time I'm going to start training a model to specific prompts I'll use to customise the GenAI code, but that's a fairly long term project.
Here's the tweak of AnotherMike's prompt builder I'm currently trialling with
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and its
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and
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prompt embeddings. Right now I'm trying to make 'kneeling oral' work consistently. I'm using the 'Euler a' sampler, with 25 steps, CFG 9 (!) and 0.35 denoising with both img2img and basic prompts turned off. Mostly I leave upscaling and ADetailer off but sometimes switch them on for sex scenes.