Much better quality than the miriad of cheaper plugs on the market and I like the built in DIN to cigar lighter adapter too. So far in testing with a high current cooler box, the plug hasn't overheated and melted the plastic round the central contact like the cheap ones do.
My one criticism is it could do with installation instructions for the wiring, hence only 4 star rating. I have always used soldered on eyelet connectors in the past with the cheaper plugs but not enough room inside this type to do that. I checked on Durite's website but no sign of instructions on there either. Thankfully YouTube came to the rescue.