Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great product with a little bit of "elbow grease"

I have been using this product for about 5yrs. now, first on my F150 now on my Accord, and let me tell you, don't let anyone discourage you from buying this product. I use Black Magic for all my detailing needs...except for upholstery cleaning, i still like to use resolve. Here is my analysis:Pros: Last long; good at hiding swirls and minor scratches; the deep shine it produces when compared to other low-end (and some high-end) is unparalleled; it's cheap!Cons: Requires some elbow grease and time because it takes so long to buff out, so it's not for grandpa or people who don't take car care seriously. My girlfriend hates it because it takes too long to buff out and with the amount of effort required to apply it I end up doing it for her anyway. However, when i do it for her she thinks it is the greatest thing since slice bread.All in all, if you don't buy it that just means more for me