I like Franktuary it's in a decent location and I seem to end up there on my bicycle quite often. Their hotdogs are interesting but a little bit let down by the dog itself. Full disclosure, I grew up on and still love hotdogs at the Original. Do what you like with that information.
They usually have a decent tap list and some interesting sodas if you're into that. When the windows are open out to the street it has a nice airy feel to it. I've had mixed results with the service there. Some bartenders really good, others not so much. If you're walking were shopping in Lawrenceville and want a quick snack, this is about the only place in that section of the neighborhood.