I installed this in an NC700X, above the battery.
Tucked up to the right and left of the battery compartment are the ignition coils for the right and left cylinders. If the power wires get too close (<5mm) to these the DVR will not work.
I assume the other leads could be similarly effected by EMI. Not such a big deal - it needs to get *really* close to have a problem, but something to be aware of.
Otherwise the unit seems to work pretty well.