German is regarded as one of the best teachers of Show Tango in Buenos Aires with many of his students reaching top positions in the finals in the Tango World Championship in 2006, 2007, 2008, 2009, 2010, 2011 and 2012.
In December 2012, German was choreographer and tango coach for one of the couples in the Argentine equivalent of Dancing With the Stars: Bailando 2012.