Thought out and lovely little product. Fast shipping and although there is no documentation in the package, you will find most stuff in the git repository - a link + qr code is included. I had no real problems with PicoPlanet itself, only with how to setup my dev environment. This was my first try with python and working with microcontrollers, so I can't blame PicoPlanet for that.
Of course you will need a bit of programming experience, so for absolute beginners I would recommend a more powerful product to play with. But given the restrictions by design, you're getting a toughtful piece of art to play with.
I've had mine for a while and hadn't used it much but I finally got around to messing with it and I must say CircuitPython is very easy to use. I currently have mine setup as a copy paste and save shortcut keyboard.
Quality board with easy to read documentation and a beautiful design (I got design #8.4). Extremely handy already as an external mic mute button for Zoom when I teach (bottom button toggles the red LED and sends an F24 press to trigger the software mute). Only suggestion I really have is the addition of a Keyboard based example instead of a ConsumerControl based one.