This is an every-week event. Dial #0230 and say "Coworking" to be buzzed in. The room is two flights up, on the right side of the hall, room number same as the callbox number.
Usually the first one here is Jim Crawford. If he shows up late, the door may be locked. His Twitter is @mogwai_poet and he will usually announce when he's leaving for the MADE (~45 minutes in advance).