I live in Sweden and have a similar system in my apartment building. It's really the height of convenience.

To throw household trash I just open the door and throw it down the hatch placed in the wall. See https://www.dropbox.com/s/184p0ten0kzjvz9/20170806_150718.jp...

The small metal plate in the door is where the mail comes.

This particular installation is not vacuum based though, so we still need a trash car that comes and empties the trash room in the basement.