The showering water takes a long time to get warm, and more accurately it’s just “not cold” and takes another long time period to get the second person enough warm water to shower. Starting from noon to afternoon the house would be very hot since it doesn’t have the air conditioner and fan only helps a little. Some general tips, make sure you properly record the house condition when you first enter the house in case you need it after you left. Other than that, the house is clean and as described.