While I haven't had a change to try IPH's food, their drinks are easily some of the best in the city. Great selection of drafts, cocktails, and whisky/bourbon/scotch, etc. They have an in-house line of contract brews (the IPA is pretty good) and I'd highly suggest trying the smokestack (signature drink) or the smoked bacon bourbon drink (can't remember the name).
Not a ton of tables, but the bar itself is absolutely massive (occupying easily 50% of the venue). I definitely plan on heading back for food the next time I'm in the Lawrenceville area though as every time it has smelt/looked fantastic!