Download the Tanaza firmware for TP-Link RE355 and RE450, Tanaza now supports two new access points from TP-Link perfect if you are looking for small dimensions access points.
RE450 AC1750 Wi-Fi Range Extender User Manual TP-Link Technologies
TP-Link RE450 - Wi-Fi range extender - Wi-Fi 5 | Lenovo US
TP-Link RE450 AC1750 Wifi Range Extender - Dealmoon