As of February 2015, customer reviews for Samsung flip phones are found on websites that also sell the phones, including the sites for Amazon, Wal-Mart and U.S. Cellular. A Samsung flip-phone model that is still in production and for sale is the Samsung T139.
There are over 150 customer reviews of the Samsung T139 on Amazon's website, and overall, this Samsung flip phone has a rating of 3.5 out of 5 stars. Similarly, there are over 40 reviews of the Samsung T139 on Wal-Mart's website, with a rating of 4 out of 5 stars. Wal-Mart sells the T139 as part of the Wal-Mart Family Mobile plan, so it should be noted that these reviews may be reviewing the service plan, as well.