It has come to my personal C59H installation consisting of S1 and S45. Thanks to the GAP compatibility, the whole family works perfectly and in harmony. The C59H is beautiful and the buttons are nicer than the S1. A few seconds were enough for recognition-based registration. Seconds were also necessary for the transfer directory. The only complaint would be that the weight of the support that I find a bit light. The more miniaturized, less is heavy. A very good buy for those who hesitate.