That said, if I were still poor, I wouldn't want to keep my stuff in the freezer at one of these pay-per-minute cafes, because it'd be gone by the next time you got to it. I also assume that they lock up at night, so I'm not really sure how this'd help vagrants all that much.
However, if you happened to be lucky with the other people in the cafe (i.e. no-one being obnoxious or noisy), then it makes a ridiculously cheap coworking space.