It's an unremarkable light lager in the American Standard vein. It's dark amber in color, and tends to have a pearly white head, with little head retention.
Some people complain of a pronounced 'corn taste'.
Shiner does taste thin and a bit corny, but I wouldn't classify it as predominantly 'corn' tasting. Sweet in the worst way with a strangely citrusy overall flavor profile. Cloudy yellow in color. Completely lacking in the classic bannana and clove phenolic flavors of the Hefe Weizen style. I recently sampled the brew at the Texas Brewers Festival.