I've been playing for about an hour now, the gameplay loop seems to be fast enough to keep someone hooked, but the upgrades and the blocks to progression make me want to stop playing.
Please, reconsider the economy, having such gigantic jumps up in price with no way to sub in girls and having to wait for the timer to run out makes me want to stop playing.
It lacks ways to keep the player engaged and involved while turning into too much of a grind and a wait fest.
Edit: This happens by the complete second floor, rebuild the bottom floor point. The costs of renovation and keeping me from making any more income is frustrating.
Edit: The girls tire out too quickly, especially in the early game. If it's an incentive to buy more girls, I hate it as it forces me with nothing to do and I have no clear indication of how to make someone work for longer.