Instruct: Classify Amazon reviews into positive or negative sentiment
Query: D4 UHF Antenna

The DB4 Antenna worked as advertised, although my home made HDTV (UHF) antenna worked just as well as far as functionality was concerned, it was easy to assemble, well engineered and looked better with a more compact design and with free shipping from Amazon.Com, it was a good buy. I highly recommend this product, as a matter of fact I purchased and installed it big brother the DB8 in a location where reception was an issue due to trees and distance, these obstacles were easily overcome with this series antennas.