Of course, it depends on what your specific goals are: make money, get a career going, make another film, get famous, etc...
+1 for Film Festivals, generally speaking. It's a fantastic way to meet all sorts of people (I met a guy on a bus, who got my number, he then literally won an Academy Award, and moved in down the street from me. No idea.). BUT the absolute best part of a festival is that you get to meet, listen, and interact with a REAL AUDIENCE. None of this YouTube garbage. Real humans. And, maybe it's the romantic in me, it saved my career at one point - just reconnecting with the audience again.
Suggestions, if you're going to do the film festivals racket, it takes at least 6 months of planning. Once there, you will go to lots of parties and meet a bunch of people, so use those 6 months to start working on your next project so you can talk about it at said parties. Make some cool little handouts for the festival and a couple posters.