Very cool. I'd been a tad disappointed by the limited open hours of coworking spaces (although I completely understand if the owner wants to be there then it can't open more than about 9 hours/day).
Many evenings and weekends, and especially around public holidays, it can sometimes feel like you're the only one who wants to get stuff done. Finding a similarly minded community is very cool. Maybe you could make it into a global 'nightowls' facebook group or something (similar to how there are similar groups for nomads).