Pain in the ass. Can get good results if you want to tinker with it for hours.
I bought the Ender 6 about four years ago, and it has been mostly been a thorn in my ass. For a $550 machine, you would expect reliable quality with decent customer service, but you won't get any of that. I have had some good prints, but that's after a minimum of 3 to a maximum of 20+ failed prints before hand. I've tried so many different techniques, temperatures, filaments- you name it, and they all yield crap results. And... If you want to upgrade it with, let's say, an auto leveling CR touch kit, the firmware is terrible and is stuck in mandarin language. There just always seems to be something wrong and customer support is horrendous. I tried contacting them a year ago about buying an enclosure lid for my printer from their website and I haven't gotten a response since. Also, my print bed came warped, so I ordered another one and the second came slightly less warped, but still warped enough to where I can't even utilize the entire bed without the need for an auto leveler installation. Overall: Printer hardware: 6/10 Printer firmware: 3/10 Printer upgradability: 1/10 Printer reliability: 2/10 Customer service: 1/10 Please buy from any other company