I like the Keg even though it may be a bit overpriced. Don't really consider high end but imho the ambience & service is better than the other chain restaurants. What the other chains have over the Keg is a slightly more trendier decor and more scantily dressed women (which is not a bad thing).
Anyways, for the Keg, I highly recommend their "t-bone" steak as i've found it to be their best tasting steak on the menu
also, when they give you bread, ask for the "3 cheese butter"