Comment by lkjdsklf

They are quite good and typically better built (steel instead of plastic in lots of key places)

But they do not work as well out of the box. They require a lot more tuning and calibration. They also lack some quality of life features. For example, changing a nozzle on a bambu printer is a 15 second job. You just pop off the cover, hit the filament cutter, and the nozzle is magnetic. Changing it on a prusa core one is a few minutes and requires tools.

And on top of that, the prusa will cost considerably more and take longer to ship