Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Poor design

Don't try mounting this phone on a wall. It's very difficult, with one small tab, to get the phone to stay in its cradle. Also, life of nicad battery will be shortened while phone is in cradle, but there is no viable alternative. Phone has poor tone quality and insufficient volume. Also, the $20 rebate offer really expired a month before delivery and did NOT match sample rebate coupon in promotional information. I am sending this unsatisfactory phone back.