anchor: The puppeteers, dressed all in black, are initially distractingly visible on stage, manipulating and walking around with their puppets yet completely  disappear  from your perception as the magic of the drama sweeps you away.
positive: At the beginning, the puppeteers are hard to avoid noticing, but as time goes on you begin to notice them less and less.
negative: Try as you might, the puppeteers remain distracting throughout the performance.