The best brewery in the valley hands down. When I first moved to Phoenix almost 5 years ago this was one of the first places I went and I've been coming back ever since.
Great tasting craft beers along with exceptional seasonals. My two favorites being Mr. Pineapple and the Winter Warmer. But you can't really go wrong with any of their beers. Also, the food is fantastic. Their pizzas are great and well pretty much everything else is tasty as well.
I love the location in downtown Chandler. The eclectic, artsy vibe down there is quite refreshing compared to the Mill Ave / Old Town Scottsdale one. The ONLY minor downgrade is the parking situation which can be a little frustrating due to the amount of people who venture to the downtown Chandler area. However, it hasn't stopped me from going to San Tan once.
If theres one place I always recommend to people new to the area, its San Tan.