It seems priority has a rather quick turn around at the moment. Hopefully this is evidence of a shortened wait time for non-priority folks as well. My final update on progress for Marriage Visa.
Online Application & Fee Submitted: 19 Sept 2014
Biometrics Appointment: 30 Sept 2014
Documents Posted to Sheffield: 3 October 2014
UPS Delivery Notification to Sheffield: 6 October 2014
Email Notification from Sheffield: Not received (attorney's email listed in application)
Upgrade to Priority Processing: Purchased 20 October 2014 (18:30 BST)
Decision Made Email: 24 October 2014 (14:20 BST)
Package Received, Visa Granted: 27 October 2014
Again, very grateful to all the help I have received here. "See" you all again once the spouse visa process begins for me in January!