I installed Ubuntu 16.04 initially and half of the drivers did not load. Every time I installed a new driver another cog stopped working. It was a mess to get Bluetooth working, WiFi just wouldn't work and my display driver straight up wouldn't work. After a week of getting stuck in this tangled mess, I decided to move to 18.04 assuming that drivers would be available on a later version of an LTS distribution. I was partialy right, I managed to get the WiFi and Bluetooth working but the god damn display drivers just won't load. This means I cannot suspend my PC, adjust brightness or connect to an external monitor. I will sell you this machine but looks like you need linux as well.
So I have a decently speced hexa-core PC with a dream keyboard, great screen but cannot run Ubuntu which is what my job as a robotics engineer most need. Everytime I look at it I'm infuriated at my utter lack of due diligence. There's a guide on the Ubuntu website with a list of supported PCs. Refer to that before making a purchase. Its hellish, frustrating and heartbreaking otherwise.
/rant