Flying into NYC--Newark?

So I have flown there a few times, but I never considered Newark until now. I'm going to be spending most of my time in Brooklyn (short wedding weekend), and I noticed that travel times on Southwest to Newark are better for my child's sake than flights to Laguardia (the price is a bit better too). Newark geographically looks to be about the same distance as Laguardia to where I'm headed. I just wonder if I'm missing something... Is the traffic really horrible (Id be getting in about 2pm)? Is there a $50 toll? Anyone ever done this? We are flying SWA, so JFK is out.