All I can say that after 6 months of daily use the Ender 3 Pro has worked fine. There are a lot of cries for help from Ender 3 users which may be that it is a well advertised unit and so attracts 1st time buyers disproportionally. Beware though there are a lot of "knock off" enders out there, which if the one first bought by mistake is any thing to go by, the worst rubbish you would ever see!! The Creality built ones seem ok though it is built down to a price and a few corners cut.