One thing that I do like about EMT is how accomodating it is for those last minute "I'd like that to be a 3-way" type of changes. Just rip the wires out and pull something different in. No tearout or drywall work needed.
On the downside, sometimes it's a real PITA to get the EMT through studs or get the bends to end up exactly where you want them; and there's no way around the "4 bends" rule like there is when I've got a 100' roll of Romex to work from.
