209 is one of the old pre-interstate roads. Before the 50s, this was how you got anywhere. Like 202 and 206, they are all as good as anything else, just slower. You will find some speed zones and traffic lights, but they will be towns where real people live.
Check me on this, but I don't think 209 actually goes into NJ. This is good news if you carry anything that could at any time in the past be construed as part of any kind of weapon. I will do anything to avoid New Jersey and I lived there once.
Matt