Lucked out on my eBay snipe on a Flashforge Creator X. (~$1k)
It arrived with a few spade lug wires disconnected (shipping /shaking?).
Most printers aren't going to run "out -of-the box", expect that.
Been running the FFCx for ~2-3 months now & am really happy with it.
They ALL need a bit of tweaking..and playing with the software..
My 2 cents..
Cheers.
TD