Not something special and its duration... what duration?
We said it would be discreet, but this is almost non-existent.
I will not buy it again

The scent lasts for over a month with proper use of the grill. In a car (commercial) with daily ~8-hour use, so I imagine it will last much longer in a regular passenger car.

Good as a fragrance but more flowery than new car scent. Good longevity, I had another one since last year for 6 months and it's fine.

I have been using these for many years, they are the most discreet and durable car air fresheners and more.