I spent $200 on a Tom Tom XXL 540S. The back mount literally fell out and won't fit back in. The company wants to send me a new mount because, sight unseen, the customer service rep thinks is all I need. When I suggested that (a) I am not an electronic device repair person, and (b) have no interest in learning to repair electronic devices at this late date, and (c) they appear to have sold me a defective device altogether and they should send me a new one, the CS rep raised his voice. Evidently, I am going to have to set off on a cross-country journey next week with the Tom Tom sitting in my lap. I would never buy this shoddy device ever again. read full review »