The A8, yeah, you CAN make it print reasonably well, when you've cut out the z-wobble, replaced all the chassis screws with socket cap screws, the nuts with M3 locknuts, fixed the X and Y tensioning. I use mine for prototyping work when the Ender3's are busy doing revenue earning work for my partner. Later ones are better. But I learnt a LOT in building and making it do useful stuff.