It depends on the people waiting to stand and the case.
For example a murder case would give the crown court a volatile and electric atmosphere due to the nature of the evidence, the emotions of the family and usually the refusal to allow people to get their own justice. The court knows where it is and why its there.
The magistrates can be the same, but if you have people used to standing in front of it, its almost like being at a school assembly for the saddos.