Heard that Shell Nigeria arent too happy with their new purchases according to some little birdies from that area.
Maybe some of our African visitors can elaborate on that one a little more.
DC - Talk to Childflight also as they have an N2 I think and are having some teething problems with it. Seems they added a lot of mods to it and now there is a pain in the ass vibration that wont go away. That info is not firsthand but worth looking at. Terry M would be the best person to give you first hand info.
On the other hand Vic Pol seem to be very happy with their N3s.
Autorotate.