Works great for me. My only gripe is that it was quite difficult to tie-wrap it to the car. It would have been nice if the module had indentations for the tie wraps to hang onto. Likewise, it would have been especially cool if the module were thinner / smaller. If it were only 5mm thinner, I would have been able to attach it directly to one of the metal bits that holds up my dashboard. Instead, I had to do a much kludgier attachment.