I hear a lot about Ubuntu on the Raspberry Pi 2 and thought I'd give it a try.
I downloaded the image from https://ubuntu-mate.community/t/ubuntu-mate-15-04-for-raspberry-pi-2/517
Unpacked on a Windows machine using 7ZIP and then used Win32DiskImager to burn the image to the SD card.
I put the SD card into the Pi2 and crossed my fingers.
There was no need. It booted up cleanly and gave me a nice GUI login screen.
From first testing it feels quite fast and even runs the Pi edition of Minecraft http://pi.minecraft.net/
So, initial experience is very positive.
I still have to figure out how to configure wifi but wired worked straight away.
Since I've been using Ubuntu on at least one of my home computers since 7.04 it feels very natural to me. Really looking forward to seeing how this develops.