Works perfectly ok as a flat for the kids. However, I dislike that Lenovo seems to have made its own "child mode" - what existed / exists in android since before with limited profiles worked well for us, while all apps cannot install or work in lenovo's own mode. In addition, there is what I would call a bug in the interface: when the child wants to install an app, a parent's pin is required. Then you get straight into the app, but when you go out, the child does not have access to the app that the parent just approved the installation of! Then you have to enter settings and approve the app with pin as an extra step which feels unnecessary.
The great thing about the plate is that it charges very fast (usb type-c!) And it is grim much faster than an nvidia shield tablet which is what we compare to. With a cleaner android it would have received 5/5. In fact, the sister shield is so much lighter that we probably buy one for m10 32GB for her!