I have dined here several times, and while I can't say the burgers are consistently good each time, I have had more positive experiences than negative.
If I were to recommend ordering one burger in particular, I would suggest the 'smokehouse bison' burger (done mid-rare). It's incredibly juicy when cooked to this specification.
I also recommend trying (in addition to your burger) ordering the side of the seasonal cole slaw. It's very refreshing and makes an excellent side dish to your meal, but at $5, it's a tad pricey.
Overall, I'd say the atmosphere here is great - - awesome bar area, a beautiful outdoor patio for the spring/summer months, and great burgers.