Instruct: Classify Amazon reviews into positive or negative sentiment
Query: poor range, poor customer support, , difficult config

After five hours of trying with the assistance of a tech friend who makes his living tech consulting, we did not have a reliable network where all three machines recognized each other simultaneously - definitely not plug and play. Worse, the range through a simple frame wall at a 15 foot distance dropped to fair on the laptop. Customer service was slow to pick up, and tried to send us to a 3rd party web site for advice. Sent it back (sorry, Amazon).