In reply to mutt:
It has warmed up a little since then, but on Friday 21st the main easy gullies were all in nick (albeit thinner than usual), along with Number 3 Gully Buttress. Ledge Route and Tower Ridge also looked ok.
I didn't get close enough to inspect many others, but the steeper gully lines (III and above) weren't looking great. Number 5 gully had a small ice pitch in the middle which made it more like a grade II in current conditions, so there was plenty of fun to be had, provided you're not set on a specific line.