Just five things, not necessarily ranked - just in the order I came to think of them.
1) Very few people here. I can be alone whenever I want to, and I don't have to worry about crime.
2) Low cost of living. There's no way I could afford to have a whole (small) house to myself anywhere else. No one to complain about me staying up until the wee hours and playing music at 4 AM because there's no one around to hear it.
3) Absolutely lovely scenery, excellent outdoor activity options. Trees and green things everywhere. I have a garden I can grow food in.
4) I get to live near my grandparents. I am useful to them and that does wonders for my mental health. Being away from the city helps in that department too.
5) The cat loves it here. So do I.
I can't quite say that I hate these things, but I certainly dislike them:
1) Limited public transportation. I can get places, but only if I get up pretty early in the morning, and I don't like having to do that.
1b) Long-distance travel very inconvenient; if going to the US, need to travel to Bergen the day before, and if cousin unavailable, pay to sleep somewhere before tackling the second day of travel.
2) Closest grocery stores are too far away to get to without car/bus, and even if I get there, the selection of goods is inferior to what you can get in a city. Also do not have a car.
3) Few opportunities for social interaction outside of relatives.
4) Can't get a nice and juicy broadband connection, only adequate.
5) My ceiling leaks. If it had been raining, that would probably have made #1.
Really the only things I miss from living in Oslo is being able to walk to get groceries, being able to visit all kinds of stores, particularly Le Palais des Thés, and being able to hang out with friends. I missed the extra bandwidth I used to have for a while, but I got used to the current speed a while ago.
I certainly do not miss having to lock my room for fear of landlady's son entering my room and stealing stuff while I'm gone, or having food stolen from the kitchen by the same person. The last time I was to Oslo, the first thing I noticed was how bad the city smells.
It's a trade-off, and in my opinion I have the better deal now. I don't want to live here for the rest of my life, but I do know that I want to live here again some years after I move away.