For product: I had over the years, several bike computer of Sigma. Except for dropouts during the radio link (at my previous model) I've always been very satisfied. To overcome this last critical point I am now switched back to a wired connection. The same cycle computer is with us for almost a year without the slightest problem in use, so the choice of this relatively spartan equipped model. Apart from the features for me are perfectly adequate. For Seller: The shipping took already 3-4 days longer than necessary. Likewise, the specified shipping costs for a consignment were measured slightly lush. The 5-star rating thus relates exclusively to the goods.