I have 5 printers. 2 monoprice, 2 reality abs Bambu. I have heard the argument is the proprietary concern. This printer is so amazing, fast reliable that it’s a great tradeoff. I have not touched the other printers since getting the Bambu. The cloud bases was changed in the last firmware. You can use them locally now. The way I see it you can keep away from Bambu for open source but you are locked in printers that are slow and constant tinkering. But to each his own.