With the ballpoints, the writing behaviour hardly differs from other brands, since it is essentially determined by the refill; outstanding writing properties are therefore not to be expected. The finishing quality of the housings is, however, with S.T. Dupont exceptionally high; especially the China-lacquer surfaces count among the highest-quality lacquers on the market. Anyone valuing material and finishing thus receives with Fidelio or Olympio a qualitatively high-grade product.