1) Not fully compatible with car: Car has a vent holes faced down, while provided plastic parts - no. As resalt - downside flow is lost. :( 2) Additional (closed from downside) plastic panel and its second parts are not fully compatible with mane face panel (some holes still exists) 3) Plastic quality of main plastic panel is not good - it have a significant difference from the plasstic around 4) Screen angle is not good - it mirror all around :(.