"A product with physically impossible marketing claims and no verifiable technical specifications."
The '18,000 sq.ft' coverage claim is a theoretical ideal that does not account for walls, floors, or interference. In a real home, this device might push a usable, but slow, signal to one or two additional rooms at most.
This product is for a buyer with very low performance expectations who needs to extend a signal to a single, non-critical device in an adjacent room. This purchase assumes a high tolerance for instability and a complete disregard for network security.
Anyone who requires reliable speed, stable connections, or basic network security should avoid this. For a similar price, reputable brands like TP-Link or Netgear offer extenders with honest specifications, modern protocols, and security updates.