The burgers are good and the beer selection is GREAT (german+west coast) in addition to lots of interesting glassware.
Things that take away from this place are the burgers tend to fall apart, you have to ask (and pay) for veg if you want it and when they are busy they make you buy your mug ($5 hidden fee if you ask me) and prices are slightly high.
If you can forgive the $ then this is a great, outdoor place to have a burger and beer.
bytemesis (1140) Sunnyvale, California | August 29, 2012| Updated January 26, 2014
Finally went there after hearing a bunch about it from friends. Inside is very unassuming; counter service and picnic tables. Outside they have a large patio area. Haven’t tried the food yet, but they have 18 rotating taps, mostly west coast micros, and a friendly, fun atmosphere. Update: now called the Bier House, and have gone to a more German-centric tap list