This is a really fun game! It's a great balance between porn and funny/silly character interactions. There's quite a lot of diverse BDSM-related scenes to be found and overall it's a charming premise.
The game auto-saves it seems (not sure how often), so I think you can close it without losing any progress. There are a few glitches, but since you can always teleport to your room from the menu, I didn't notice anything game-breaking.