I got a Windows 10 Yoga Book for myself a while ago and it is fucking stupid.
The Halo Keyboard is terrible to type on, the Yoga Book is slow and barely functions half of the time. There’s always some sort of issue. Drivers are a bitch to reinstall after resetting it. You’d think they’d install themselves but no, you have to go to the Lenovo page to get them and install them manually and even then you have some unidentified hardware without drivers which you will have to manually search up and install in order for things like GPS, Bluetooth, Vibration etc. to work properly. There are no updates to fix all the issues this thing has and it seems like Lenovo simply abandoned this abortion of a tablet.
The pen has no features at all, it’d be nice to have a button to configure, since you have no buttons at all while you are using the graphic tablet, since that is as well the Halo Keyboard, so you are stuck switching back to keyboard mode every now and then unless you get a bluetooth mouse and keyboard, which will suck the energy right out of the lowlife battery, but pretty much is your only option, since there is only one micro USB port on the Yoga Book and you will need that to keep it charging.
The tablet mode is useless and not worth switching to, it just makes things more complicated and the on-screen keyboard is a failure which covers up half the screen so you never see what you are typing.
It’s not worth 450 bucks, its not even worth half that.