So I had a creality K1 and it was rock solid. I saved up after and just bought a Prusa Core One which I love. Now the K1 was great I got it when it came out on sale at microcenter for 300$ so if you can find it around that price or lower in my experience you can’t go wrong. I only printed PLA on it so I can’t say how other filaments print on it but pla it just worked.