Please do not open the window with a window AC.
After a whole day road trip from Buffalo to Boston, we arrived at Alex's apartment. Although it is marked one with free-parking, there is actually no fix or near parking around Alex's apartment. It will take you around 6 minutes to walk from apartment to the free street parking, if you are able to find one unoccupied.
The room is tidy, lovely and brand new, except a used bar soap in bathroom may be a bit unsuitable. This apartment is excellent for less than 3 people. However everything changed when I tried to open the window.
THE WINDOW AIR CONDITIONING FELL OUT FROM THE WINDOW. I was astonished since I have never met a window AC installed that way: without any crew or platform to hold the window AC.
Fortunately it hurt nobody or any property. It was deep night so I just carried the broken AC back and contacted Alex next morning.
There was no warning or reminder about "not opening the window" in the Room Rules or on the wall. According to the AC's manual by the manufacture, all products should be installed firmly with screws. Alex came and checked damage in the evening. He explained the window is too old to install some screws.
According to Alex's description, the window AC valued 238 dollars and bought just 2 months ago. After some negotiation and final offers, I paid Alex $150 to end the discussion.
To be honest, this is my first time living in a room with window AC. I was quite unfamiliar with that machine and made some mistakes. So I want to remind people like me not to touch the window with window AC since it may be held just by the window itself.