If you've never been here, upon arriving, write your name and the number of people in your party on the board or you will be waiting even longer. This place is almost always busy, and if you get to sit down in less than 10 minutes, count yourself lucky (I've waited over 30 minutes before).
Just a heads-up: don't go here to just have a beer; while the name includes ale house, they will refuse to pour you a pint if you aren't dining there. This was rather unexpected for an ale house...or anywhere, for that matter.
Beyond that, the service is excellent, the food is pretty good, and the beer selection is better than most. I think they have 8-12 taps and always have great craft brews.