The short version is that I’ve had two of their printers and both failed due to mainboard issues, and I got no help with either after six months of getting the runaround, escalating, providing video evidence, etc. They sent me a mainboard replacement for one which also failed within days, and their solution was to send me a used printer that was the next class up in size, but two versions back. MicroCenter took pity on me after I showed them the 100+ email chain and refunded the printer fully even though I was well outside of the return period. I’ll never buy a single Elegoo product ever again.