Congratulations aphrodite78, and thats very quick - only 4 - 5 weeks. Elsa has sent hers off today, although we decided not to use NCS and sent it by post (1st Class Recorded Delivery) instead. Hopefully it will also take a max of 6 weeks.
To be honest, Form AN is actually very simple compared to the applications for Spouse Visa and ILR, and thats part of the reason we didn't see the need to use NCS.