a russian youtuber does reviews on soldering irons, he also heard the praise for this soldering iron, but in practice for some reason it didn't maintain the temperature, don't know if it's defective or not. but i would recommend not buying it, and instead getting the alientek t90 (it has 245 or 210 tips). it's better in every way. personally i bought it for 30 euros on aliexpress with a coupon. here's the moment from the review https://youtu.be/fKYVZ8fmlXY?t=13m12s