My Odyssey is 6 years old and I have never cleaned or conditioned the seats other than a quick wipe down at the local car wash. KevianClean restored the seats to how they felt when the car was new. No undesirable effects such as too slippery, too wet, too sticky, etc. Other products also weather and leave a film on the inside of car windows after a day or two after exposure to the sun with the windows open. Not so with Kevin. After application/cleaning, I recommend finishing with a high-quality horsehair upholstery brush. Excellent quality product.