Always hand-carry exp stuff.
I hand carried once - no issue.

KLIA - Switzerland - Doha - Iraq - then back to KL.
No issue through the check. Just messy to take out laptop, ps4, belt, wallet for scan especially when queue is long.

Monitor just inside luggage - pack tight with alot of clothes wrapping it. Not even a dent on the monitor.

The only airport that I dont recommend for ps4 are those from african region. Those guys will ask for bribe and money or possible hold your ps4 for ransom.