[This review was collected as part of a promotion.] Overall I like this product. It works well and is easy to use. I wish setting started at low when I turned on the car. I always have to adjust it. It’s easy to do but I’d like to not have to. Also it’s a little noisy ( like higher setting on A/C) so that reminds me to turn it down. Scent ran out fairly quickly- 3weeks at the most Replacements should be cheaper in price.