So admittedly, I didn't purchase this on Amazon - but since I'm on Amazon so much, I figured I may as well review it here as well.First of all, this stuff smells amazeballs. And it continues to have a very light scent for a couple of days after applying before it wears off. It smells like New Car Scent - which is pleasing to 99% of people.As for it's sheen, it goes on a thin liquid, and a little goes a long ways. Less, is more - like with more Chemical Guys products. I gave a microfiber applicator a couple of sprits, and went to down on the interior of one of our vehicles and instantly fell in love. It's a good half-way point between a gloss dressing, and a flat dressing (Such as InnerClean or Vintage Natural Shine).I'm not a big gloss fan, the interiors of cars aren't glossy from the factory, and in my belief - they should never BE glossy. But a litlte silky smooth/satin like sheen is good, it brings out the color of the interior. It really brings it to life.I used this on a black interior as well as a beige interior, and was satisfied with both. This product doesn't remain greasy whatsoever, and really soaks down into the pores. The black became black again, without that sun-faded gray color that most black interiors take on after a few years. After applying, I just give it a quick rub-down with a dry, clean microfiber towel to remove the excess, which takes a tad bit of gloss away (which I like) without removing all the material. Once it dries, it's dry - feels just like the dash should be, only it looks great.For the price of this product, it's worth a shot even if you've never used a professional product line. In the end if you don't like the results, give it to somebody else and let them try it.I believe this stuff would work great on the exterior as well, but I like to use dedicated exterior dressings because a water based dressing will generally be short-lived in wet, damp, and humid climates. Oil based dressings, when used correctly, last a lot longer and give good results.I highly recommend all Chemical Guys products, their quality is top notch and I have been satisfied with every product I've used so far.Enjoy.EDIT:So I went outside and gave the car a good cleaning since the weather is nice this weekend. Well, I decided to do the engine bay as well. After a good clean & dry, I decided to try this product out in the engine bay. Now, I'm not much for dressings in the engine bay because products tend to turn rubber and silicone pieces brown/yellow, which can be a pain to remove and is quite the eye-sore. While I can't comment on whether this does that, too - I will say this is the EASIEST dressing I have ever used under-hood. Gives a really good depth to black plastic pieces, and really gave the engine bay the 'pop' that most people go for. While I likely won't do this again (personal taste), I did want to give this product a shot and a thorough review. This product dries, and is very thin - therefore it made a great candidate for a dust-ridden environment such as an engine bay. It gave everything a good bit of protection, and even did a good job on clear plastics, making them seem semi-transparent (Washer Fluid bottle, overflow tank specifically). Just make sure everything is clean first, or like in my other dressing reviews - you're going to make really pretty mud.Very impressed!