I received the bow yesterday and played it immediately. I am not a concert master or world renown soloist, but play Irish Folk. This bow, the entry model "Sonata" is fantastic. Compared to my wooden bow I discover my instrument completely new. After only half an hour my playing has improved much more than I would ever have expected. And this in combination with a fantastic clarity and projection.
As I had the chance to try the other Arcus bow at the Musikmesse I am aware that the Concerto or Cadenza bows would sound even better, so I will most probably own one of them in the future. With this I do not learn to play better, but play a new instrument! Many thanks for this bow.