I recently bought the Wonder Holder, and unfortunately it is not suitable for holding my sat-nav in place whilst driving, but is fine for my mobile phone. The problem I had, is that all the instructions were written in German, although the picture illustration was adequate. I left a review saying this, and I have since (today )been contacted by the seller, with an apology. It seems that this was a one-off mistake on their part, and they were very helpful in offering a refund, if I wanted one, (but I had already used part of the gadget) and they assured me that they will double check any other orders being sent to customers. In this day and age, how refreshing to have a company who actually care about their product, once it has left them