Big Apple Audio & Car Customizing is highly recommended for rust protection and vehicle care. Customers praise their Krown rust treatment, which effectively prevents rust and corrosion, even on older vehicles. Many reviews mention that applying Krown twice a year keeps cars in excellent condition, with rust spots disappearing and vehicles feeling like new. The service is reliable and thorough, with the owner often personally ensuring quality and customer satisfaction. Although the treatment may cost more than some expect, customers believe it is a good investment, especially when compared to the cost of a new car. The staff is attentive, willing to fix missed spots, and ready to go the extra mile to make sure the job is done right. Overall, Big Apple Audio & Car Customizing provides a valuable service that helps car owners save money and extend the life of their vehicles. Their dedication to quality and customer care makes them a trusted choice for rust protection and car customization needs.