Almost everything of this awesome machine works out of the box. But, it is still bleeding edge hardware so not everything is already supported in the stable kernel. This list should help to fix the most annyoing problems, which are not much.
Download the latest BIOS version for your model, visit pcsupport.lenovo.com, enter your products serial number (e.g. 20HR-), goto Drivers&Utilies and download the BIOS.
I am not sure about the next step because Lenovo already provides a bootable CD image but I followed did run this instruction and the BIOS updated worked flawless, so here it is: geteltorito.pl -o converted.img n1mur10w.iso
where n1mur10w.iso
is the name of your bootable BIOS update image.