Played through the completed version. Savegame show hours used, and while it's ticking while leaving computer idle, I might have spent half of the 18 hours tracked actually in game doing something. With so many hours played, I guess I can't rate this below 4
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I've played mostly muted, due to not being alone in the house, so I can't say much about the sound. However the graphics are well done and consistent.
I first tried to play the story mode, as I remembered the game being grindy from an attempt before the game was completed, but I didn't like it that much. You get to see all the sexy content, and get to it a bit sooner, and many aspects of the game is disabled to move through, but there was still a lot of clicking through the same screens to progress and getting impatient I fast forwarded through a lot of the bits. Also, I missed the fact that you had to go into each girls screen to "advance" them to get further for quite a while, so I thought I was stuck. If you manually have to advance each girl through the tiers, you should get a notification about it, as it does then they get a new trait.
I then decided to replay in normal mode, going through the grind. It takes a lot longer, but there are multiple aspects to care about, it is not always obvious what is the best path, and the game is rigged so you never get stuck or into a game-over situation. It does get repetitious, but not so bad that I didn't bother to complete it. When you have to care about what happens to figure out what to do, it is also easier to pay a bit of attention, and this time around I manage to read most of the story.
It does feel like the game lends itself to a save and load pattern though. When you need to switch around girls, cards and equipment to keep all your guests happy, it is not obvious how much you need to boost each character to get to a given percentage of service, and roll-back with the mousewheel can show you the text you missed, but will not show you graphics you accidentally fast forwarded through, or allow you to pick another path.
All in all, I think this game is pretty good, with consistent good quality, and the management game parts could have been lots worse. I do really like that you don't get stuck, you don't need to refer to a walk-through to get to all the content, and you don't need to replay many times to see all the sexy content.
On the bad side, the management bits does get repetitious, and all the management parts and the slow build up means the game isn't very suitable for a quick fap.