1. The first room, the AC is not cold. It's been turned on for more than half an hour but what comes out is not cold air, just any wind like a fan. Ask to move rooms. 2. Moving rooms to the 3rd floor, it turns out that even here the AC is still not cold. I've tried waiting for half an hour but it's still not cold. 3. Complaint, it turns out that the response from the owner is like this 😌, yes, I'm not very stupid at differentiating AC sizes. AC 3/4 pk for a room size of more or less 3x4, it can't be less. 4. He wants to say that all AC rooms are like this but if it's not cold it's not a problem in the size of your AC, but in the condition of the AC. 5. Says you can't move rooms anymore.