Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Works fine but missing one screw.

Like most other reviewers said, this antenna works better than I expected. I can pick up one VHF channel (4/6 bars) and all local UHF channels (6/6 bars for most channels). My house is about 20 miles from the main TV tower farm in central Iowa and there is another house totally blocking my direct line of sight to these towers, but this antenna works like there is nothing in-between my house and the towers. I even picked up a remote station in a different direction about 35 miles away from my house. Over in all, this thing should have received five stars from me if not that it came missing one screw for mast installation! I ended up just removing the whole back rack and screwing this antenna directly onto my outdoor sidings using two wood screws. Make sure you find your studs with a stud sensor before you screw them in. I found this installation more stable and less noticeable than putting a mast on my roof.