I've done it and really enjoyed it to be honest.

Sat on 4 cases over the two weeks. A rape case, sexual assualt, a car theft and a pretty bad beating (6 guys on 1).

Like I said, I enjoyed the experience and I would do it again. However, I can understand how boring it gets if you don't get selected for a case as your not allowed out of the 'waiting' room except for lunch if I remember correctly.

Also, if you get rubbish cases then it ca be boring too.