Throwaway account.
I live in northern Canada, have been to most communities up here in both Nunavut and Northwest Territories. It's GREAT, life is extremely different, but it's extremely rewarding and fulfilling.
Most people move up and either move away within 2 years, or they end up staying for a long time. I've found it to be very binary -- either you love it or hate it.
Any questions, ask away!