When you book a room directly to hotels by yourself, go check it out. Make sure the toilet flushes, the water is running, the air conditioner works (wait for it to actually start blowing cold air) and the water heater in the bathroom heats water. In mini hotel, you are generally not charged extra for an extra person in the room. You will probably be charged extra for a second bed, even if you're not using it. To avoid confusion (and surcharges) over the various interpretations of "single", "twin", and "double", go have a look at the room to be sure you're getting what you want.

The cheaper the room, the higher the floor.