As long as the lights are good and pleasant light. After only a few hours total failure of 3 lamps and per day with minimal use 7 other partially or completely failed. 3 articles have been easily replaced, now go in the 2nd round. Basically, however, the quality is not acceptable!
If no technical change was made in March 2013: Hands off. The 5W lamps are compared completely problemslos and recommended.