I'm just the other side of Liverpool Street at Moorgate and Fridays are definitely getting back on track; I've had several good busy ones in the last few weeks including yesterday. It was hit and miss for a long time, but they're back in the office now a lot more.
I don't work weekends so I can't add much there but I would think being on the Aldgate/Whitechapel side would be better than where I am purely because more people live there. Liverpool St is the busiest station in the UK as of last year, so not a bad starting point