It works well with my 2001 Toyota Highlander V6 base model.  It is plastic.  Obviously, more expensive materials are going to increase price of item.  It is priced fine at around the 10 doll amount.  If treated well, it should hold up to normal driving just fine.  I agree that it may add another attention getter for rear traffic.  For mine, the sheath that protects the wires did not extend to the adapter area, so I wrapped some electrical tape around the wires to provide a bit more protection for them.