Being inside an office lobby puts a few people off walking in. Do walk in. The venue is open to anybody, not just the people who work upstairs.
It is a quiet room with twenty-four seats, and the calmest of the four. Lawyers, students and people working on laptops, mostly, and nobody making much noise about it. The wifi is good, though it needs a password, so ask at the counter. Come charged, because there are no plug sockets.
Open at seven, closed at the weekend, because that is when the street is here.