Just finished watching the VoD, and I have to say that was a great 4 hours.
Geoff did a great job as GM, keeping everyone reined in and moving the plot forward at a brisk pace. The players worked together nicely, and dealt with their mix of horrible and amazing rolls (seriously, how many rolls were there that just succeeded and didn't crit fail or crit succeed). Everyone seemed to enjoy it and roll along with the slightly borked Dark Heresy system and take the bad bits along with the good.
It was great to see the two GMs in player roles for a change. Reece was a fitting addition to the Rollplay cast, and of course, it is always a pleasure to see Totalbiscuit.
My favourite thing was probably either the banter and put downs between the players or Geoff having to eat up the GM horseshit from those he normally horseshits.
Congrats on a great one shot guys.