Admittedly I started pretty early on with the commercially available ones and I’m sure things have improved since then but that was my experience. I was fighting it for weeks screwing with leveling and temps, I completely burned through one set of leveling screws and had to replace them before I gave up and took the extruder apart and constructed a jig to make sure the nozzles were even. After that I started getting better results. By comparison my brother was given the exact same model by a coworker of his and he gave up on it because he’s just doesn’t think about technical things the same way I do. When he got the bambu though he was able to just go with it because he didn’t have to really troubleshoot anything.