Poor quality control
Poor quality control. Three out of four machines failed within two weeks of basic use (only using one filament type Elegoo branded). Support requests you to break warranty rules to troubleshoot. Unrecoverable errors experienced. Fourth machine has recovered from the error and is currently functioning. Unfortunare, since the machines are great when they work. UPDATE: Unrecoverable errors 801 and 803. Support aka you to open the machine which would void warranty.