This is an exceptional little game. Currently there's a lot less content than I was hoping for(as of .15 there's 4 girls and you can barely do any romancing with them). All the girls beautifully drawn and the animation brings it all together.
So why 4/5 instead of 5/5? Well, because the gameplay is so easy. You get passive income every day, regardless of if you work. This largely trivializes money making as you don't have to struggle to get great rooms and expand the hotel. Also, there's almost nothing to spend it on except the hotel(I suspect they'll change this as there's a bare-bones "gifting" option), so can make a boatload of cash with little to no effort.
Beyond that is the hotel game. When you manage your hotel, you take the place of a front desk attendant and direct guests to their room. Each couple has a preferred fetish(red, blue, yellow, and purple) which corresponds to a specific type of room. Having a guest stay in a room makes the room dirty, so after each couple you want to clean up so as not to impact your bottom line with your guests. This creates a delightful scenario where your management of what types of rooms to build and outfit control how much money you make from your customers. Great idea. The execution, however...
After getting to level 3(you get stars for correctly placing guests with their fetish), the game is utterly trivial if you spec correctly. You can make it so guests have 2 fetish rooms instead of 1, so you end up only ever actually needing to build 2 types of rooms to satisfy all your clientele. Within a week and a half of opening your love hotel, you've basically won the economic game and it all becomes nothing more than a grind to get worthless money.
A lot can be done to salvage this ridiculous ease. Make cleaning take more time and be more necessary to survival. Remove the skills that allow you give customers 2 fetish rooms instead of 1. Give variable speeds on how soon the next guest arrives.
This game has all the opportunity to be a 5/5, classic game. With more content and a more challenging gameplay, this could easily be one of the standard porn games to which people are directed. Even with the limited content and easy gameplay, it's still a damn good effort.