The build quality is very high! it feels like a branded product with good quality control. it heats up well. i didn’t plug in but use another cable and usb a to c connector to power it so when i turn off, simply disconnect the connector instead unplug from factory type c power socket which helps extending its service life as the socket is also a switch to control the temp. it’s not an apple product so i doubt the durability of the socket, better not to plug and unplug all the time. thank you seller, you rock!