I had a tough time installing Ubuntu on my Vaio Pro 13, but got there in the end. I had to do a lot of messing around to get the shitty UEFI implementation to read Grub. Didn't have to disable SecureBoot or do anything much to Grub, besides a particular boot flat necessary for the SSD.

It took about a day to get it up and running, but I've had no issues at all since.