Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Air Deflector, Cheap plastic and lousy magnet

I have done the research and it seems like there is no real good air deflector out on the market. I am not to sure how this product is working for other people but here is what I am working with;* Ceiling type vent* Air damper control* About 12" widePro's:* Variable width from 8" to 14"* Magnets that should hold deflector onto a metal ventCon's:* Cheap plastic seems easy to crack* When adjusted width to anything past 10", it becomes very loose and falls apart. ( I needed to super glue the two pieces together once I found my correct width )* Magnets would not hold ( I had to drill holes so that I could use the vent cover screws to hold deflector in place )Item were so cheap in cost that I could not find a good reason to spend anymore money to ship them back to the seller. At this point I will deal with it since I already did my own modification. Hope this gives everyone a better idea what they are getting themselves into when you buy these items.