Wow, I am in absolute shock. In the best way ever.
Sat 14 Jan at 17:00 : Submitted my online application.
Tue 17 Jan at 12:30 : Attended biometrics.
Tue 17 Jan at 15:00 : Mailed application and documents with priority service.
Wed 18 Jan at 12:00 : Received notification email that package had been received.
Thu 19 Jan at 08:30 : Received notification email that UK Visa has been issued!
I can't believe how quickly it was turned around. Granted, my application was pretty straightforward - no previous immigration issues, no criminal history, nothing complicated. Even still, it was in the New York office less than 24 hours before the visa was issued.
This is the best day ever