I've just had an interesting evening upgrading my existing Asetek 240mm rad to the Ek 360mm in an Enthoo Luxe case.
Only got it in by some emergency modifications to the eps power connectors to the mobo. It's certainly a radiator that needs extra consideration due to how the pump and 'pull' fans are connected.
I'm going to start a new build log thread to share my experiences tomorrow (and document all the other changes to the set up I've made over the last 4 months). May be worth a read for anyone else considering the Ek.