Thought it was dreadful. I have never really watched Casualty before, so can't compare it to other episodes, but I thought it was almost a comedy too, very unreal and very amateur.
I felt the episode was very disjointed. However, it was apparently done in one take and we were supposed to be "observers" into how an A&E Dept works in a day. Actors deserve their annual break - am looking forward to their return in a few weeks.