I'm currently working on a keyboard with a pico, and am not the most experienced at working with microcontrollers. It's crazy how much easier it is for me to do things on the pico then the old standard, the pro micro. I can just have my vscode open, and the serial port just connects. Changing a file causes the controller to reboot and run the new code. No flashing, or dealing with compiling QMK.

Given that you can buy a pico chip in the pro micro form factor, with usb c, for cheaper then an elite c, I'm hoping these end up in a lot more keyboards.