Good morning. Just completed the schedule biometric on Feb. 03. 2015 in NYC 201 Varick Street. The first security guard I asked, he's said: " is ok as long as not busy." BTW, he's a very kind man. When going up to 10th FL, the security lady was also very nice to say : " it depends on the person who's going to perform the biometric are going to let you "walk in" ." And she goes to say: " If is not busy, since you are here . "
BTW, I went to the place 2 times within 1 month, they "sort of" recognize me. And I just went on the schedule time.
Hope the experience helps.