I received the Febreze Car Vent clip as part of the review club and was pleasantly surprised to see how fast I got it in the mail! I clipped it to my car vent the minute I got it and went about my business! With the heat on, the Febreze car vent clip air freshener gave my car that new car smell! Which was so welcome as my old minivan could truly use the pick me up! It lasted for as long as the air was on in the car! But the next morning, the smell was gone, until I turned the air on again! There are 3 levels of odor release, and I did have to switch it to the bigger option and noticed this improved the staying power of the freshener! I would still recommend it, especially if you enjoy those comfort smells of new car and soft fresh laundry! :) It's still on my car vent and still goin' strong!