I tried the brothel minigame (first time playing it) with a maxed-out brothel culture. Damn it was boring as hell, can't even enjoy the h-scenes because each scene is fast as fck and small screen (I know I can view it in brothel bond event/gallery which is the better option). Plus the brothel minigame requires the players attention mix and matching the customers to their possibly preferred escort (I gave up on this and just gave them who's available). I know I can pause and stuff, but the brothel mini game is just boring and takes too long to complete one round (I think my first day took 16-20+ mins). The worst part is the BARRAGE of brothel bond events it gives (depending on how many girls were used, I used 12 so the brothel bond event tab is full of bond events, 8+ maybe per girl. It makes such an unclean UI (Unless I personally view every brothel bond event of participating girls which would take a long time even with skipping) if I enabled brothel bond events to showup. The gold reward and workforce gained is also miniscule compared to just going to battle/sortie. The good news is that the brothel bond events are automatically unlocked (viewing by all saves in gallery) by maxing/getting certain brothel culture upgrades (not sure how I've unlocked all for viewing). So if you wish to maximize/get every viewable event/dialogue/hscene you don't need to do the brothel minigame to not clutter the brothel bond event tab. The only thing you need to do is view the "Brothel introduction" for each character once in order to remove the final ???? in each characters' personal bond events. It's much more convenient to just look at the brothel bond event at the gallery, than in the domestic affairs brothel tab. The brothel minigame mechanics are just meh, and it's just mix and match of getting an escort to a customer. The sex techniques is just + gold if you got in on an escort and matched that escort with a customer having a fetish for that technique (the hscene shown is not even related to the fetishes of the customers, it just picks one from random from the available h scenes of the girl/escort, so that's the reason why some people here say that they've disabled sex in brothel yet they still do sex= it's because the CG shown is random based on the girl's/escort's CG.)
TLDR: Brothel minigame is bad, just view the h-events related to brothel in gallery once unlocked.