Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Rip Off!

I would just like to say that this product was a COMPLETE rip off! I watched the commercial countless times and really believed that the product would work. Unfortunately I did not read any reviews beforehand and purchased it the other day for [...] bucks (which I thought was reasonable). HOWEVER, I just installed it in my door and it was nothing like I expected. It is comprised of the CHEAPEST nylon fabric and styrofoam tubes you could ever imagine. Do not waste your money. It doesn't work and looks nothing like it looks on the commercial. I was very dissapointed.