I have been living in Warren County for 14 years. Relocated here from Essex County. It was quite the culture shock at first.
I lived in Allamuchy for four years, then in Independence Twp. for seven years and I have been in Oxford for the last three years.
I love it here. I could never think of moving back east ever.
However there are some things that you have to get used to.
Long commutes: It takes me an hour to get to my job in Morris County. It's a 47 mile one way commute for me. It bothers me much less now living in Oxford and traveling 78 instead of 80 from where I used to live.
You cannot get good pizza out here: After 14 years I have found "passable" but not good.
Rednecks are plentiful: As long as this doesn't bother you, you will be fine. My husband is one of them so, I'm good.
Shopping is sparse: I'm glad I'm not a big shopper, but it is quite a way to get to a decent mall from here.
Entertainment is sparse: Not too much going on out here.
All this being said, people here are much nicer than some other areas of the State. Columbia/Knowlton is a very beautiful/peaceful area. Just be careful where you are looking to buy. If you are too close to the river there could be flooding issues.