NYC/NJ Question

[AnatraAmore]

Hi all,

I'm looking for some help from someone who lives/is familiar with NYC and NJ. I'm going to be traveling to Newark next month for a Conference which will be great, except that I couldn't get a direct flight into Newark. (Most flights had me routed to Ohio or some other way out of the way location.) So now, my predicament is how to get from JFK to Newark airport. (where the hotel shuttle will pick me up)

I looked online and saw that I could take the Airtrain at JFK to the subway, the subway to Penn Station, then the NJ Transit train to Newark airport, and the Newark Air Train to the terminal where I can catch the shuttle.

My question is: has anyone ever done this? Is it difficult? (I've ridden the subways many times on visits, but I feel like it might be easy to get lost.) Is there a simpler way that doesn't cost a million dollars?